As one of the most important energy storage technologies in the 21st century, lithium-ion batteries have expanded from their initial consumer electronics applications to broader areas such as electric vehicles and energy storage systems.
Since Sony launched the first commercial lithium-ion battery in 1991, this technology has completely changed the way energy is stored and used around the world. At present, the lithium-ion battery industry is in a stage of rapid development. Benefiting from the general trend of global energy transformation and the popularization of electric vehicles, the industry continues to expand and technological innovations emerge in an endless stream. According to the latest statistics, the global lithium-ion battery market size has reached US$98 billion in 2023 and is expected to exceed the US$100 billion mark in 2024.
China has established a complete industrial chain in this field, from upstream raw materials to midstream battery manufacturing, and then to the downstream application market, forming the world’s most competitive lithium-ion battery industry ecology. At the same time, countries and regions such as the United States, Europe, Japan and South Korea are also accelerating their layout, and the global competitive landscape is being reshaped.
This article will comprehensively analyze this vibrant industry from four dimensions: the current status of lithium-ion battery technology development, market competition pattern, industrial chain structure, and future development trends, and analyze the latest developments and development directions of the lithium-ion battery industry.
1.Technological evolution: innovative development path from lithium cobalt oxide(LCO) to solid-state batteries
The development of lithium-ion battery technology can be regarded as a history of innovation in materials science. Looking back at history, in the 1970s, M.S. Whittingham of Exxon used titanium sulfide as the positive electrode material and metallic lithium as the negative electrode material to make the first lithium battery, which pioneered lithium battery technology. In 1980, J. Goodenough discovered that lithium cobalt oxide could be used as the positive electrode material of lithium-ion batteries. This discovery laid the foundation for modern lithium-ion batteries. After Sony released the first commercial lithium-ion battery in 1991, this technology began to be rapidly commercialized and continued to evolve.
The iteration of cathode materials is the key driving force for the advancement of lithium-ion battery technology.
At present, the mainstream positive electrode materials in the market can be divided into three categories:
- layered lithium cobalt oxide (LiCoO2);
- ternary materials (NCM/NCA);
- spinel lithium manganese oxide (LiMn2O4) and olivine lithium iron phosphate (LiFePO4);
Lithium cobalt oxide dominates the consumer electronics field due to its high energy density (theoretical capacity 274mAh/g), but its poor stability, poor high temperature performance and high price limit its application in the field of power batteries. In contrast, although lithium iron phosphate batteries have a lower energy density (theoretical capacity 170mAh/g), they have been widely used in electric vehicles and energy storage due to their excellent safety, long cycle life and low cost.
Ternary materials (NCM/NCA) represent the highest level of current power battery technology. By adjusting the ratio of nickel, cobalt, and manganese (or aluminum), a balance between energy density and safety can be achieved. High-nickel ternary materials (such as NCM811) have an energy density of 200-300Wh/kg, making them the first choice for high-end electric vehicles. However, ternary materials still face challenges such as poor thermal stability and short cycle life, especially in high-temperature environments, where there are safety hazards.
Data show that a commercially available ternary power battery will burn violently when heated to 120°C after being charged to 4.15V, which has prompted the industry to continuously explore safer solutions.
Innovation in anode materials is also valued. The theoretical capacity of traditional graphite anode electrodes is 372mAh/g, which is close to its physical limit. Silicon-based negative electrodes are regarded as the next generation of anode materials due to their ultra-high theoretical capacity (4200mAh/g), but the serious volume expansion (more than 300%) problem restricts the commercialization process.
At present, through technologies such as nano-silicon-carbon composite materials and graphene coating, some companies have achieved small-scale application of silicon-carbon negative electrodes, such as the 380Wh/Kg high energy density battery developed by Amprius Inc. in the United States. Although the capacity of lithium titanate (Li4Ti5O12) negative electrode is relatively low (175mAh/g), its “zero strain” characteristics and excellent safety make it valuable for application in specific fields.
Solid-state battery technology is regarded as the next generation solution for lithium-ion batteries. Compared with traditional liquid electrolytes, solid electrolytes have advantages such as:
- non-flammability;
- no leakage risk;
- higher energy density;
- etc..
According to the state of the electrolyte, solid-state batteries can be divided into two categories:
- gel polymer lithium batteries;
- all-solid-state lithium batteries (ASSB Lithium Battery); Can be less than 0.5mm thick.
Globally, Toyota, QuantumScape, Solid Power and other companies are actively developing all-solid-state battery technology, but it is still far from large-scale commercialization. The main challenges are interface impedance, cycle life and cost control.
Advances in manufacturing processes are also driving the development of the industry. From the perspective of battery cell production, the precision and consistency requirements of mixing, coating, rolling, slitting, and assembly are extremely high.
Taking coating as an example, the thickness deviation of the electrode coating needs to be controlled within ±2μm, which places strict requirements on equipment and processes. Battery system integration technology is also becoming increasingly complex. The Tesla Model S battery pack consists of 7104 18650 lithium batteries, which are efficiently managed through a sophisticated battery management system (BMS). BMS technology involves multiple functional modules such as battery terminal voltage measurement, energy balancing, SOC calculation, and thermal management, and is the core to ensure safe and efficient operation of batteries.
2.Market structure: New global competition under the leadership of China, Japan and South Korea
The global lithium-ion battery market has formed a three-legged pattern dominated by China, South Korea and Japan. According to the latest statistics, China’s lithium-ion battery production will account for more than 75% of the world’s total production in 2023, South Korea will account for about 15%, Japan will account for about 8%, and other countries and regions will account for less than 2% in total. This highly concentrated industrial distribution reflects the absolute advantage of East Asia in the field of lithium battery manufacturing, and also foreshadows the geopolitical characteristics of the future global energy storage industry chain.
The rise of the Chinese market is particularly eye-catching. From the perspective of production capacity distribution, China has formed a complete industrial system with CATL and BYD as the leaders, and China Innovation Aviation, Guoxuan High-tech, and Yiwei Lithium Energy as the second echelon.
CATL has ranked first in the global installed capacity of power batteries for six consecutive years, with a global market share of 37% in 2023. Its customers include global mainstream automakers such as Tesla, BMW, and Volkswagen. BYD has achieved remarkable success in the lithium iron phosphate technology route by relying on its vertical integration model of “self-production and self-use”. Its blade battery technology has increased the volume utilization rate by more than 50%. It is worth noting that China’s second-tier battery companies are accelerating their expansion. For example, Zhongxinhang has successfully supplied GAC, Xiaopeng and other automakers, and Guoxuan High-tech has established a deep cooperative relationship with Volkswagen Group.
South Korean companiesremain highly competitive in the global market. LG Energy Solution, Samsung SDI and SK On, the three major Korean battery companies, together account for about 25% of the global market share. The technical route of Korean battery companies is mainly based on ternary materials, and they have a leading advantage in the field of high-nickel batteries. LG Energy Solution is one of Tesla’s main suppliers, and its NCMA quaternary battery (nickel cobalt manganese aluminum) has an energy density of more than 300Wh/kg. Samsung SDI maintains a leading position in the high-end consumer electronics battery market, and its 21700 cylindrical batteries are widely used in power tools and other fields. The international layout of Korean companies is relatively balanced, with large investments in both the European and American markets. For example, LG Energy Solution’s factory in Poland has become the largest battery production base in Europe.
Although Japanese companies have shrunk in market share, they still have advantages in material technology and high-end markets. Panasonic is Tesla’s earliest battery partner, and its 21700 cylindrical batteries produced by its Nevada Super Factory have long been the exclusive supply of Model 3. Japanese companies have deep technical accumulation in the field of materials. For example, Asahi Kasei’s diaphragms, Nichia’s cathode materials, and Ube Industries’ electrolytes are all at the global leading level. Data shows that Japanese companies have a market share of more than 60% in the high-end diaphragm market, and their technical advantages in sub-sectors such as electrolyte additives are even more obvious. Toshiba’s persistence in the field of lithium titanate (LTO) batteries has also achieved results. Its SCiB batteries have found a specific market in the fields of energy storage and commercial vehicles with their ultra-long cycle life (more than 15,000 times).
European and American companies are accelerating their catch-up and trying to reshape the global battery industry landscape. The annual production capacity of the Nevada Super Factory jointly owned by Tesla and Panasonic has reached 35GWh, and Tesla’s self-developed 4680 large cylindrical batteries have begun small-scale production. The super factory built by Northvolt, a European local battery company, in Sweden has received huge orders from BMW, Volkswagen and other automakers, and plans to achieve an annual production capacity of 150GWh by 2030. QuantumScape, an American startup, focuses on solid-state battery research and development and has received more than $300 million in investment from Volkswagen Group. It is worth noting that European and American countries are promoting the construction of local battery industry chains through policy means, such as the U.S. Inflation Reduction Act (IRA) provides a subsidy of $35 per kWh for locally produced batteries, which will have a profound impact on the global battery industry layout.
Competition in technical routes is becoming increasingly fierce. From the perspective of the market structure, the two major technical routes of lithium iron phosphate (LFP) and ternary materials (NCM/NCA) have their own strengths. In 2023, the market share of lithium iron phosphate batteries in China has exceeded 60%, and it has reached more than 40% worldwide, mainly due to cost advantages and safety performance. Ternary batteries maintain their leading position in the high-end market, especially high-nickel ternary materials with a nickel content of more than 80%, which can meet the needs of long-range models. The performance difference between the two technical routes is obvious: the energy density of lithium iron phosphate batteries is usually 100-110Wh/kg, and the energy density of the group is about 80Wh/kg; while the energy density of ternary batteries can reach 200Wh/kg, and the energy density of the group is about 110Wh/kg. In terms of cycle life, lithium iron phosphate can usually reach more than 3,000 times, while ternary materials can reach 1,000-2,000 times.
| Performance indicators | Unit | Lead-acid battery | Ni-Cad battery | NiMH battery | Li-ion battery |
| Working voltage | V | 2 | 1.2 | 1.2 | 3.7 |
| Energy by weight | Wh/kg | 30-45 | 40-60 | 60-80 | 110-190 |
| Energy by volume | Wh/L | 60-90 | 100-150 | 150-200 | 200-500 |
| Cycle life | times | 300-500 | 500-1000 | 500-1000 | 500-2000 |
| Monthly self-discharge rate | 4-5% | 20-30% | 30-35% | <5% | |
| Hazardous substances | Lead | Cadmium | / | / | |
| Cost | rmb/wh | 1-1.5 | 3 | 4-5 | 6 |
| Safety | good | outstanding | good | outstanding | |
| Charging speed | medium | Faster | Faster | Faster | |
| Usage cost | RMB/discharge 1 kWh | 3.29 | 9.84 | 10.43 | |
| Environmental protection | poor | poor | good | good |
3.Industry chain analysis: full chain layout from mineral resources to recycling
The lithium-ion battery industry chain is long and complex, covering three major links: upstream battery raw materials, midstream battery manufacturing, and downstream applications. Each link is interdependent and mutually restrictive. A complete industrial chain layout has become a strategic focus for countries to ensure energy security and enhance industrial competitiveness. From a global perspective, China is currently the only country with a complete lithium-ion battery industry chain, which provides a solid foundation for Chinese battery companies to compete in the global market.
The upstream raw materials link is the foundation of the industrial chain and the most prominent area of current supply and demand contradictions. The supply of key materials such as lithium, cobalt, nickel, manganese, and graphite directly determines the sustainable development capacity of the battery industry. In terms of lithium resources, global lithium mines are mainly distributed in Australia (hard rock lithium), Chile, and Argentina (salt lake lithium). China’s lithium resource reserves account for about 6% of the world, but its processing capacity accounts for nearly 60% of the world. The distribution of cobalt resources is more concentrated. The Democratic Republic of the Congo supplies more than 70% of the world’s cobalt raw materials. This highly concentrated resource distribution brings supply chain risks. Nickel resources are divided into two categories: nickel sulfide and laterite nickel ore. The former is suitable for producing battery-grade nickel sulfate, while the latter needs to be processed by high-pressure acid leaching (HPAL). Indonesia is becoming a global nickel processing center with its rich laterite nickel ore resources.
Cathode materials are the part with the highest cost share of lithium-ion batteries, accounting for about 40% of the cost of the battery cell. The cathode material industry chain includes precursor production, cathode material sintering and other links. Chinese companies have taken a leading position in the field of cathode materials. For example, Rongbai Technology’s high-nickel ternary materials and Defang Nano’s lithium iron phosphate materials have reached the international advanced level. It is worth noting that the localization rate of lithium iron phosphate materials has exceeded 98%, while high-nickel ternary materials are still partially dependent on imported precursors. From the perspective of cost structure, the price of cathode materials fluctuates greatly. For example, the price of lithium carbonate has soared from 50,000 yuan/ton in 2021 to 600,000 yuan/ton in 2022, and then fell back to about 200,000 yuan/ton in 2023. This drastic fluctuation poses a challenge to the cost control of battery companies.
The anode material market is relatively concentrated, with China accounting for more than 85% of the global artificial graphite negative electrode market. The three major negative electrode companies, BTR, Shanshan Co., Ltd., and Putailai, together account for more than 50% of the global market share. Artificial graphite is made from raw materials such as petroleum coke or needle coke, which are graphitized at temperatures above 2500°C. This process consumes extremely high energy (about 12,000 kWh/ton). The industrialization process of silicon-based negative electrodes is accelerating. For example, the silicon-carbon negative electrode material developed by BTR has achieved a reversible capacity of more than 350 mAh/g. Graphene also shows potential as a negative electrode material or conductive additive. The graphene battery developed by Graphenano, a Spanish company, is said to be able to charge to 80% in 8 minutes and have a range of 1,000 kilometers, but the scale of commercialization remains to be verified.
Separator and electrolytes are key auxiliary materials for lithium-ion batteries, and the technical threshold is relatively high. The diaphragm market has long been dominated by Japanese and American companies. Asahi Kasei, Tonen, and Celgard of the United States once occupied 77% of the global market share. In recent years, Chinese companies have made breakthroughs in the field of diaphragms. Enjie Co., Ltd. has entered the first echelon of the world through the acquisition of Hungarian company TAN, and the thickness of its wet-process diaphragm products can be less than 5μm. The electrolyte is composed of solvents, lithium salts and additives. Lithium hexafluorophosphate (LiPF6) is the most commonly used lithium salt. Its production technology barriers are high, and its price once soared to 130,000 yuan/ton. Chinese electrolyte companies such as Xinzhoubang and Tianci Materials have achieved independent production of LiPF6 and made progress in the research and development of new lithium salts (such as LiFSI).
Recycling & utilization are crucial to sustainable development. The recycling of lithium-ion batteries should include the steps
- pre-treatment of waste batteries;
- recovery of electrolytes;
- separation of active substances and current collectors;
- recovery of metal components;
- etc..
At present, the industry mainly adopts two processes: pyrometallurgy and hydrometallurgy. The former has high energy consumption but simple process, while the latter has high recovery rate but complex wastewater treatment. The “directional circulation” technology developed by Brunp Cycle can realize the direct recovery of lithium, which improves economic and environmental protection. Future technological development will focus on non-welding connection of battery cells, online residual energy detection, and Battery Pack splitting and reuse. At the policy level, the new EU battery regulations require that the lithium recovery rate reach 70% by 2030, and the recovery rate of cobalt, nickel, and copper reach 90%, which will promote the progress of global battery recycling technology.
The downstream application market shows a diversified development trend. Electric vehicles are still the largest application field of lithium-ion batteries. In 2023, global electric vehicle sales will exceed 10 million, driving the demand for power batteries by about 500GWh. The energy storage market is growing rapidly, especially utility-scale energy storage and household energy storage. In 2023, global energy storage battery shipments will exceed 100GWh.
The consumer electronics market is becoming saturated, but the demand for high-energy density batteries for high-end products such as drones and AR/VR devices is still growing. Segments such as power tools and electric two-wheelers are also rapidly converting to lithium batteries, replacing traditional nickel-cadmium and nickel-metal hydride batteries. It is worth noting that the requirements for battery performance in different application scenarios vary greatly: electric vehicles emphasize energy density and fast charging capabilities, energy storage systems pay more attention to cycle life and cost, and consumer electronics pursue thinness and smallness.
4.Future Trends: Parallel Technological Evolution of High Energy Density and Low Cost
Lithium-ion battery technology is far from reaching its ceiling, and will continue to maintain a rapid iterative development trend in the next decade. From the perspective of the technology roadmap, energy density improvement and cost reduction are two parallel main lines, and indicators such as safety, cycle life, and fast charging performance will also continue to be optimized. Industry experts predict that by 2030, the energy density of lithium-ion batteries is expected to reach 300-400Wh/kg, and the cost will drop below $70/kWh, which will further expand its dominant position in the field of energy storage.
Innovation in material systems will be the key to future breakthroughs. In terms of positive electrode materials, high nickel, low cobalt, or even cobalt-free is a clear direction. High nickel materials such as NCM811 and NCA have begun to be applied on a large scale, and ultra-high nickel materials with a nickel content of more than 90% are under development. Lithium-rich manganese-based layered materials (xLi2MnO3·(1-x)LiMO2) have a theoretical capacity of more than 250mAh/g and are strong candidates for the next generation of high energy density positive electrodes. Lithium manganese iron phosphate (LMFP) increases the voltage platform to 4.1V by introducing manganese elements, and the energy density is 15-20% higher than that of LFP, while retaining the safety advantage of the phosphate system. In terms of anode materials, silicon-carbon composite materials are expected to be the first to achieve industrialization, and the volume expansion problem will be solved through technologies such as nano-silicon particles and porous carbon buffer layers.
If the lithium metal negative electrode can overcome challenges such as dendrite growth, it will achieve a leap in energy density, but commercialization may not be until after 2030.
The commercialization process of solid-state batteries has attracted much attention. Compared with traditional liquid electrolyte batteries, all-solid-state batteries use non-flammable solid electrolytes, with a theoretical energy density of more than 500Wh/kg, and completely solve safety hazards such as leakage and combustion.
Globally, Toyota plans to launch electric vehicles equipped with solid-state batteries between 2025 and 2030, and QuantumScape’s solid-state battery samples have been delivered to automobile manufacturers for testing. However, solid-state batteries still face challenges such as large interface impedance, short cycle life, and high cost. The industry consensus is that solid-state batteries will follow a gradual commercialization path from consumer electronics to electric vehicles, and hybrid solid-liquid electrolyte batteries may become a transitional solution. It is predicted that by 2030, solid-state batteries may account for 5-10% of the global lithium-ion battery market, mainly used in high-end electric vehicles and special fields.
Innovation in manufacturing processes will drive costs down. The scale effect and learning curve are significant in the battery industry. Historical data show that for every doubling of production, battery costs drop by 18-20%. Large-size cells have become a new trend. For example, the diameter of Tesla’s 4680 cylindrical battery has increased to 46mm, the height has increased to 80mm, the single cell capacity has increased by 5 times, and the shell usage has decreased by 15%.
The stacking process can increase the volume utilization rate by more than 5% compared to winding, and BYD’s blade battery is a typical example. Dry electrode technology can reduce energy consumption by 30% by omitting the solvent drying process. Tesla has acquired Maxwell and obtained relevant patents. Intelligent manufacturing and digital twin technologies will improve production consistency and yield rate. For example, the “lighthouse factory” built by CATL can control the defect rate to one billionth of a billion.
System integration technology is developing towards higher efficiency. The battery system has evolved from the traditional three-level structure of “cell-module-battery pack” to the two-level structure of “cell-battery pack”. CTP (Cell to Pack) technology can increase the volume utilization rate by 15-20%, such as CATL’s Kirin battery. The more radical CTC (Cell to Chassis) technology integrates the battery cell directly into the vehicle chassis, and Tesla’s structural battery pack has adopted this concept. The thermal management system has been upgraded from air cooling to liquid cooling, and the new phase change material (PCM) and heat pipe technology can more accurately control the battery temperature. The BMS algorithm integrates artificial intelligence technology to achieve more accurate SOC (State of Charge) and SOH (State of Health) estimation, and the error can be controlled within 1%. Wireless BMS can reduce 90% of wiring harnesses and improve system reliability and energy density.
The expansion of application scenarios will create new growth points. Electric vehicles are still the biggest driving force. As the global timetable for banning the sale of fuel vehicles is clear, the demand for power batteries will continue to grow. The energy storage market has great potential, especially for renewable energy storage and grid frequency regulation services. It is estimated that by 2030, the global demand for energy storage batteries will exceed 500GWh. Emerging applications such as electric vertical take-off and landing vehicles (eVTOL) have put forward new requirements for high-energy density batteries, such as energy density must reach more than 400Wh/kg, while meeting aviation-grade safety standards. The electrification of ships is also accelerating. More than 200 electric ships have been put into operation worldwide, and the battery capacity is usually at the level of several MWh. Micro batteries have broad prospects in the fields of the Internet of Things and medical implants, and they need to take into account miniaturization and long life characteristics.
Sustainable development will become a core issue in the industry. In terms of carbon emissions, the carbon footprint of producing 1kWh lithium-ion batteries is about 80-120kg CO2 equivalent, which can be reduced to less than 50kg through the use of green electricity and process optimization. The resource recycling system is accelerating.
By 2030, the global retired power battery volume will exceed 100GWh, and the recycling industry will reach a scale of 100 billion yuan. New material systems such as sodium-ion batteries are expected to partially replace lithium batteries. The energy density of sodium-ion batteries released by CATL has reached 160Wh/kg, and the cost is 30% lower than that of lithium batteries. The coordinated development of hydrogen energy and batteries is also worthy of attention. Hydrogen fuel cells may form a differentiated advantage in the field of commercial vehicles. Policies and regulations are becoming increasingly stringent. The new EU battery regulations require the disclosure of product carbon footprints, and the US IRA Act emphasizes the localization of the supply chain. These will reshape the global industrial landscape.
Global competition will enter a new stage. With its complete industrial chain and scale advantages, China is expected to maintain its global leadership. It is expected that by 2030, China’s battery production capacity will account for more than 70% of the world. Europe and the United States have accelerated the construction of local industrial chains through policy support. For example, the US “Inflation Reduction Act” requires that at least 40% of key battery minerals come from the United States or free trade partners. The competition in technical standards is becoming increasingly fierce. The GB/T standard led by China and the new EU battery regulations and the US UL standard will compete in the global market. Patent layout has become the focus of competition. As of 2023, there will be more than 100,000 lithium-ion battery-related patents in the world, and Chinese, Japanese and Korean companies will account for more than 80%. The resilience of the industrial chain has attracted much attention, and the diversified supply of key materials and regionalized production will become the new normal.
The above is a comprehensive analysis of the lithium-ion battery industry in 2024. From technological evolution to market structure, from industrial chain layout to future trends, the lithium-ion battery industry is at a critical development stage full of opportunities and challenges. The background of global energy transformation has created an unprecedented market space for lithium-ion batteries, and material innovation, process progress and system optimization will continue to drive the industry forward.
Technological innovation has always been the core driving force for the development of the lithium-ion battery industry. From the early lithium cobalt oxide to the current parallel development of ternary materials and lithium iron phosphate, from liquid electrolytes to the exploration of solid-state batteries, every breakthrough in the material system has brought about a leap in performance and a reduction in cost. In the future, the technical route that emphasizes both high energy density and high safety will become the mainstream, and emerging technologies such as solid-state batteries and silicon-carbon anode electrodes are expected to reshape the industry landscape.
China’s lithium-ion battery industry has established the world’s most complete industrial chain and the largest production capacity, but there is still room for improvement in upstream resource control, high-end material research and development, and equipment technology level. Faced with an increasingly complex international competitive environment and a global consensus on sustainable development, China’s battery industry needs to strengthen technological innovation, improve recycling systems, and reduce carbon footprints in order to maintain long-term competitive advantages.
With the continuous expansion of application scenarios and the acceleration of the global carbon neutrality process, the lithium-ion battery industry will continue to maintain rapid growth. It is estimated that by 2030, the global lithium-ion battery market will exceed US$300 billion, becoming one of the important pillars of the new energy economy. In this dynamic industry, only those companies that can continue to innovate, control costs, and ensure supply chain security can win long-term success.