Systematic Analysis of Main Types, Advantages and Disadvantages of New Energy Vehicle Batteries
Jan 16, 2026
Systematic Analysis of Main Types, Advantages and Disadvantages of New Energy Vehicle Batteries?
As the core power source of new energy vehicles, the technical route of batteries is directly related to the vehicle's driving range, safety performance, use cost and applicable scenarios. The current market presents a pattern where "mainstream technologies occupy a dominant position and emerging technologies achieve breakthrough development". Among them, lithium-ion batteries remain the well-deserved core, while emerging technologies such as sodium-ion batteries and solid-state batteries are accelerating upgrading, and hydrogen fuel cells are developing steadily in specific fields.
This paper will systematically analyze the advantages and disadvantages of various types of batteries from multiple dimensions including technical principles, core performance and application scenarios, aiming to provide a reference basis for determining R&D directions and selecting technologies.
I. Mainstream Lithium-ion Batteries: The Core Force of the Current Market
With mature technical systems and large-scale production advantages, lithium-ion batteries accounted for more than 95% of the global new energy vehicle battery market in 2025. They are mainly divided into two major branches: ternary lithium batteries and lithium iron phosphate batteries, while lithium cobalt oxide batteries are gradually withdrawing from the vehicle application field.
1. Ternary Lithium Batteries (NCM/NCA)
Ternary lithium batteries use nickel-cobalt-manganese (NCM) or nickel-cobalt-aluminum (NCA) as the core cathode materials, and achieve performance differentiation through the proportioning of different elements, making them the mainstream choice for high-end vehicle models.
Core Advantages
First, they lead in energy density. At present, the energy density of mass-produced battery cells can generally reach 200-250 Wh/kg, and Tesla's 4680 high-nickel battery has even exceeded 244 Wh/kg. With the same weight of battery pack, they can achieve longer driving range, meeting the needs of high-end long-range vehicle models.
Second, they have excellent low-temperature performance. At -20℃, their capacity retention rate can still reach 70%; they can still perform normal charging and discharging at -30℃. In northern winters, the range attenuation can be controlled at 20%-30%, far exceeding that of lithium iron phosphate batteries.
Third, they feature outstanding fast-charging performance. High-nickel systems can support fast charging of 4C and above, and some vehicle models can charge to 80% of the battery capacity within 30 minutes, effectively alleviating users' charging anxiety.
Distinct Disadvantages
Safety and cost are their main restrictive factors. These batteries have poor thermal stability, with a thermal runaway temperature only between 200-250℃. They are prone to catching fire under extreme working conditions such as acupuncture and extrusion, and need to rely on complex battery management systems (BMS) to control risks. In addition, cobalt resources are scarce and rely on imports, resulting in high raw material costs. The battery cell cost is about 0.6-0.8 CNY/Wh, and the battery pack replacement cost is more than 30% higher than that of lithium iron phosphate batteries. Meanwhile, their cycle life is relatively short; the cycle life of conventional systems is 1500-2500 times. Although it can be extended by means of shallow charging and shallow discharging, the life advantage is not obvious in high-frequency use scenarios.
Application Scenarios
By 2025, their market share will drop to 18%, mainly concentrated in high-end performance vehicles (such as Tesla Model S, NIO ET7), vehicle models in northern regions and products with long-distance travel needs.
2. Lithium Iron Phosphate Batteries (LFP)
Using lithium iron phosphate as the cathode material, LFP batteries do not contain precious metals such as cobalt and nickel. Relying on the dual advantages of "safety and cost", they have become the absolute dominant force in the market. By 2025, the domestic loading volume proportion will reach 82%.
Core Advantages
Safety is its biggest highlight. The thermal decomposition temperature of lithium iron phosphate is as high as 800℃. In the acupuncture test, only smoke is produced without ignition. BYD's CTB 3.0 technology has further enhanced its structural safety.
The cost advantage is extremely significant. Due to the low price of raw materials, the battery cell cost can be reduced to 0.4-0.6 CNY/Wh, and the replacement cost of a 70 kWh battery pack is only 56,000-70,000 CNY.
The cycle life is extremely long, generally reaching 3000-5000 times. Calculated based on driving 20,000 kilometers per year, its service life can reach 15-20 years, which is particularly suitable for high-frequency use scenarios such as online car-hailing vehicles and commercial vehicles.
It has excellent high-temperature stability and performs more stably when used in hot southern regions.
Distinct Disadvantages
The energy density is relatively low; the energy density of conventional battery cells is between 140-180 Wh/kg. Although structural optimization measures such as blade batteries have narrowed the range gap, it is still inferior to ternary lithium batteries.
The low-temperature performance is poor. At -10℃, the capacity attenuation can reach 30%, and the driving range in winter may be reduced by half. Even after optimization of the thermal management system, its performance in northern winters is still inferior to that of ternary lithium batteries.
The fast-charging speed is relatively slow. Most vehicle models only support 2C fast charging, and the charging efficiency is lower than that of high-end ternary lithium battery models.
Application Scenarios
Lithium iron phosphate batteries are mainly used in mid-to-low-end passenger vehicles (such as BYD Dolphin, Wuling Hongguang MINI EV), commercial vehicles and energy storage power stations, and are the mainstream choice in the current market.
3. Lithium Cobalt Oxide Batteries
Lithium cobalt oxide batteries were previously used in digital products. Due to their high energy density (about 200 Wh/kg), they were once tried to be applied in the automotive field. However, these batteries have fatal shortcomings: poor thermal stability, short cycle life (only about 500 times), and cobalt content as high as more than 60%, leading to high costs.
At present, lithium cobalt oxide batteries have basically withdrawn from the vehicle market and are only used in small quantities in some special drones.
II. Emerging Battery Technologies: The Core Track for Future Competition
With performance breakthroughs, sodium-ion batteries and solid-state batteries have become the most concerned emerging technologies in 2025, and are expected to reshape the market pattern in the next 5-10 years.
1. Sodium-ion Batteries
Sodium-ion batteries use sodium ions as charge carriers and entered the initial mass production stage in 2025. Enterprises such as HiNa Battery Technology and CATL have successfully realized the application of this technology, which is a key technology to fill the segmented scenarios.
Core Advantages
It has excellent low-temperature performance. At -20℃, the discharge retention rate is greater than 90%; at -40℃, the voltage can still reach 3.2V, far exceeding the level of less than 2.5V of lithium batteries, which can perfectly adapt to the use needs in extremely cold regions.
The cost potential is very considerable. Its raw materials (sodium resources) are abundant, the raw material cost is 40% lower than that of lithium batteries, and the mass-produced battery cell cost is expected to drop to 0.3 CNY/Wh.
The safety is very prominent, with extremely low risk of thermal runaway, and no open flame occurs in acupuncture and overcharge tests.
The cycle life is long, the fast-charging cycle life exceeds 8000 times, and the full life cycle cost advantage is significant.
Distinct Disadvantages
The energy density still needs to be further improved. The energy density of current mass-produced products is 135 Wh/kg. Although CATL's second-generation sodium battery has exceeded 200 Wh/kg, there is still a gap compared with high-end ternary lithium batteries.
The industrial chain is not perfect; supporting industries such as cathode and anode materials and electrolytes are still in the cultivation stage, and the scale effect has not been fully realized.
The comprehensive performance except low-temperature performance needs to be verified, and the cycle stability in high-temperature environment still needs long-term testing.
Application Scenarios
In 2025, sodium-ion batteries will be installed in commercial vehicles for the first time; in 2026, they are planned to enter the fields of passenger vehicles and low-speed electric vehicles in extremely cold regions, and at the same time, penetrate rapidly in the power grid energy storage field.
2. Solid-state Batteries
Solid-state batteries replace traditional liquid electrolytes with solid electrolytes, triggering a dual revolution in "energy density and safety". In 2025, semi-solid-state batteries have been put into vehicle application, and all-solid-state batteries have entered the crucial research stage.
Core Advantages
It has achieved a qualitative leap in energy density. The energy density of semi-solid-state batteries can reach 360 Wh/kg, the target of all-solid-state batteries is more than 500 Wh/kg, and Chery Rhino S battery cells have even reached 600 Wh/kg, making the vehicle driving range expected to exceed 1300 kilometers.
The safety has been completely upgraded. Solid electrolytes have no leakage risk. Gotion High-tech's "Golden Stone Battery" can pass the 200℃ hot box test, fundamentally solving the thermal runaway problem.
The service life is greatly extended, with a cycle life of more than 2000 times, which is more than 50% higher than that of liquid lithium batteries.
Distinct Disadvantages
The mass production cost is extremely high. The current cost of semi-solid-state batteries reaches 1.0-1.5 CNY/Wh, which is 2-3 times that of lithium iron phosphate batteries.
The preparation process is complex, it is difficult to effectively control the electrolyte interface impedance, and the yield rate of large-scale production is low.
The low-temperature performance needs to be optimized. The discharge efficiency of BYD's composite halide route at -30℃ is 85%, which still needs to be further improved to adapt to the use needs in cold regions.
Application Scenarios
In 2025, semi-solid-state batteries have been installed in high-end vehicle models such as NIO ET7. It is expected that by 2027, solid-state batteries will enter the first year of commercialization and gradually penetrate into the mid-range vehicle model market.
III. Special Battery Technologies: Supplementary Choices for Specific Scenarios
Although hydrogen fuel cells and nickel-metal hydride batteries have a low market share, they have irreplaceable advantages in specific scenarios, forming a diversified technical supplement.
1. Hydrogen Fuel Cells
Hydrogen fuel cells generate electricity through hydrogen-oxygen electrochemical reactions, featuring "zero emissions and fast charging".
Advantages
It has excellent endurance capacity, with a driving range of more than 600 kilometers. The hydrogenation process is extremely convenient, taking only 3-5 minutes, and only water is discharged during operation, truly achieving environmental protection.
Disadvantages
However, its development is facing many obstacles. The storage and transportation cost of hydrogen is high, and the construction of infrastructure such as hydrogenation stations is seriously insufficient. Meanwhile, the cost of fuel cell stacks is high, and the catalyst relies on platinum resources, which limits its large-scale promotion to a certain extent.
Application Scenarios
At present, hydrogen fuel cells are mainly used in commercial vehicle fields such as heavy trucks and buses. Passenger vehicles using hydrogen fuel cells, such as Toyota Mirai, are still in the pilot stage.
2. Nickel-metal Hydride Batteries
Nickel-metal hydride batteries were once the mainstream choice for hybrid vehicles, with advantages such as long cycle life, high charge-discharge rate and good stability. However, they also have obvious shortcomings, including low energy density (60-120 Wh/kg), high self-discharge rate and higher cost than lithium iron phosphate batteries.
Nowadays, nickel-metal hydride batteries have been gradually replaced by lithium-ion batteries, and are only used in small quantities in old hybrid vehicle models such as Toyota Prius.
