The EV Battery Market Has Already Produced a Clear Winner in Scale
There is little doubt about who currently dominates the global EV battery market.
According to South Korea’s SNE Research, batteries installed in electric vehicles worldwide reached 608.5 GWh during the first half of 2026, up 20.0% from a year earlier.
| Company / Group | H1 2026 EV Battery Usage | Global Market Share |
|---|---|---|
| CATL | 242.7 GWh | 39.9% |
| BYD | 87.7 GWh | 14.4% |
| LG Energy Solution | 52.6 GWh | 8.6% |
| Panasonic Energy | 22.7 GWh | 3.7% |
| SK On | 19.0 GWh | 3.1% |
| Top 7 Chinese Makers Combined | — | 72.4% |
CATL and BYD alone controlled 54.3% of the global market.
Seven Chinese companies among the global top ten accounted for 72.4%.
China’s advantage is therefore no longer simply that it makes inexpensive batteries.
It possesses scale, materials, cell manufacturing, pack integration, EV customers and increasingly global distribution.
Even Outside China, Chinese Battery Makers Are Gaining Ground
This is particularly important for Korean battery manufacturers.
For many years, one common assumption was that Chinese battery companies would dominate China while Korean and Japanese companies would retain the rest of the global market.
That assumption is becoming increasingly difficult to defend.
SNE Research estimates that EV battery usage outside China reached 269.0 GWh in the first half of 2026, up 26.3% year-on-year.
LG Energy Solution, SK On and Samsung SDI together supplied 74.3 GWh.
However, their combined share of the non-Chinese market fell sharply:
37.2% → 27.6%
Meanwhile, CATL and BYD together already controlled 44.1% of the EV battery market outside China.
This is a significant warning for Korea.
Cost-competitive Chinese battery technology is no longer confined to China.
But EVs May No Longer Be the Only Market That Matters
The battery industry was built around smartphones first, then electric vehicles.
The next major application could be Physical AI.
Humanoid robots, autonomous mobile robots, drones, robotaxis, defense systems and intelligent industrial equipment all require mobile electrical energy.
And this new market may demand a very different battery from a mass-market EV.
Bank of America Global Research estimates that annual humanoid robot shipments could rise from approximately 20,000 units in 2025 to 90,000 in 2026.
Its longer-term forecast is much more dramatic:
| Year | Forecast Annual Humanoid Shipments |
|---|---|
| 2025 | 20,000 |
| 2026 | 90,000 |
| 2028 | 500,000 |
| 2030 | 1.2 million |
| 2035 | 10 million |
This implies an estimated CAGR of approximately 86% between 2025 and 2035.
Forecasts this far into the future should always be treated cautiously.
But even if the final number is substantially lower, the direction is important.
Robots could become a meaningful new battery customer.
A Robot Does Not Want the Cheapest Battery. It Wants the Best Battery for Its Body.
An automobile can carry a battery weighing hundreds of kilograms.
A humanoid robot cannot.
Every additional kilogram affects mobility, actuator energy consumption, balance and payload capability.
At the same time, the robot must power:
- Multiple high-torque actuators
- AI computing systems
- Cameras and sensors
- Communications
- Cooling systems
- Hands and precision manipulators
The battery therefore needs to deliver several characteristics simultaneously:
high energy density + high power density + low weight + rapid charging + safety + long cycle life.
This creates a very different optimization problem from a low-cost urban EV or stationary ESS.
LFP Is Excellent — But It Is Not Ideal for Everything
China’s rise in EV batteries has been closely associated with the extraordinary success of lithium iron phosphate, or LFP.
LFP has major advantages:
- Low material cost
- Excellent cycle life
- Good thermal stability
- Reduced dependence on nickel and cobalt
- Strong suitability for mass-market EVs and ESS
These advantages should not be underestimated.
For stationary storage, low-cost vehicles and robots where weight is less critical, LFP may remain an excellent solution.
But energy density becomes increasingly important when the battery must be carried by the machine itself.
A humanoid robot that needs to operate for an entire factory shift cannot simply double the size of its battery pack without consequences.
This is where high-nickel lithium-ion, high-output cylindrical cells, silicon-enhanced batteries and eventually solid-state batteries may become more attractive.
Korea’s EV Weakness Could Become a Robot-Market Strength
Korean battery manufacturers have been criticized for responding too slowly to the global shift toward inexpensive LFP batteries.
That criticism is justified in the mass-market EV segment.
But Korea’s long investment in high-nickel, high-energy-density and high-output battery technology may create another opportunity.
Samsung SDI has already made its strategy unusually explicit.
The company signed an agreement with Hyundai Motor and Kia to jointly develop batteries dedicated to robots.
Samsung SDI is also developing its SolidStack all-solid-state battery for mass production in the second half of 2027.
The company says potential applications include:
- Humanoid robots
- Mobile robots
- Industrial robots
- Drones
- Electric vehicles
Samsung SDI specifically identifies high energy density, stable output and safety as critical requirements for Physical AI.
Its strategy is therefore moving beyond the automobile.
LG Energy Solution Is Also Moving Beyond EVs
LG Energy Solution is making a similar transition, although through a broader product strategy.
The company is expanding ESS production as EV demand slows, but it is simultaneously developing high-output cylindrical batteries for new AI-driven applications.
In its 2026 strategy, LG Energy Solution identified a new high-output tabless 2170 cell for battery backup units and robot applications.
The company is also expanding its 46-series cylindrical battery manufacturing capability.
Korean industry reports increasingly identify humanoids, drones and other robotic machines as potential customers for the next generation of cylindrical batteries.
The logic is simple.
For a robot manufacturer, paying somewhat more for a battery may be economically rational if the battery allows the robot to work longer, carry more weight or charge faster.
Japan Is Thinking About Batteries in Almost Exactly These Terms
Japan’s latest battery strategy is particularly interesting.
In June 2026, Japan’s Ministry of Economy, Trade and Industry revised its national Battery Industry Strategy into a broader Battery and Power Industry Strategy.
The wording of the new strategy is important.
Japan says battery competition should no longer focus only on energy density.
It explicitly identifies power density as another important competitive axis.
This distinction matters greatly for robotics.
A humanoid may require large bursts of power when standing, lifting, jumping or rapidly moving multiple actuators.
Japan's revised national targets include:
| Japan Battery Strategy | Target |
|---|---|
| Domestic Battery Manufacturing | 150 GWh/year around 2030 to mid-2030s |
| Japanese Companies' Global Battery-Related Sales | 3× growth from 2025 to 2035 |
| All-Solid-State Batteries | Full-scale commercialization around 2030 |
Japan is therefore explicitly moving away from attempting to win only through commodity battery volume.
Its goal is to capture higher-value battery and power-system markets.
Panasonic Already Sees Robotics as a Battery Application
Panasonic Energy is a useful example of Japan’s strategy.
The company describes its high-capacity cylindrical lithium-ion cells as suitable for robotics, emphasizing high energy density, safety and long cycle life.
Its high-rate cells are designed for applications requiring rapid power delivery and high loads.
Panasonic Energy also began supplying its latest 2170 batteries to Amazon-owned autonomous vehicle company Zoox in 2026.
Panasonic said that it had supplied approximately 20 billion automotive lithium-ion cells by September 2025, equivalent to batteries for roughly four million EVs.
This automotive experience can increasingly be transferred into autonomous machines and robotics.
Japan’s Bigger Bet Is Solid-State
Japan also retains an important position in all-solid-state battery development.
Toyota is targeting practical deployment of all-solid-state batteries around 2027–2028, while Japanese material suppliers are building a domestic solid-electrolyte ecosystem.
Japan’s government now targets full-scale commercialization around 2030.
Solid-state technology remains expensive and difficult to manufacture.
It therefore may struggle initially in highly price-sensitive mass-market EVs.
But that does not necessarily make it commercially unattractive.
A smaller market willing to pay more for energy density, safety and reduced weight may provide an earlier opportunity.
Robots, drones, aerospace systems and premium mobility products fit that profile.
The Market May Split Into Three Battery Economies
| Market | Primary Requirement | Likely Battery Direction | Relative Position Today |
|---|---|---|---|
| Mass-Market EV | Low cost + acceptable range | LFP / LMFP / Low-cost Li-ion | China Very Strong |
| ESS / Grid Storage | Cost + life + safety | LFP / Sodium-ion | China Very Strong |
| Humanoid / Physical AI | Weight + runtime + power | High-Nickel / High-output Cylindrical / Solid-State | Still Open |
| Drone / Aerospace | Extreme weight sensitivity | High-energy-density Li-ion / Next Generation | Still Open |
| Premium EV | Range + charging + performance | NCM/NCA / Solid-State | Korea/Japan Opportunity |
This is why viewing the entire battery industry through the LFP-versus-NCM debate is increasingly inadequate.
The market is fragmenting.
China’s Battery Industry Was Built With Massive State Support
China’s success cannot be explained by subsidies alone.
CATL, BYD and other Chinese companies developed real manufacturing expertise, rapid product-development capability and extremely efficient supply chains.
However, state industrial policy was an important part of that development.
Washington-based Center for Strategic and International Studies estimates that Chinese government support for the broader electric-vehicle sector totaled at least USD 230.9 billion from 2009 through 2023.
This figure includes consumer rebates, purchase-tax exemptions, charging infrastructure, government procurement and R&D support.
It should therefore not be described as USD 230.9 billion of direct battery-company subsidies.
But battery manufacturers were major beneficiaries of the ecosystem the policy created.
CSIS also noted direct subsidies to battery companies such as CATL and EVE Energy and argued that support increasingly shifted toward battery manufacturers as the sector matured.
Alongside Semiconductors, Batteries Became a Strategic Manufacturing Industry
Semiconductors, batteries, EVs, solar power and advanced manufacturing have all received strategic support under China’s industrial policy.
It would be difficult to prove that batteries are literally China's “second most subsidized industry” after semiconductors.
But it is reasonable to say that:
Alongside semiconductors, EVs and batteries became one of China's most strategically supported advanced manufacturing industries.
The result is visible today.
China created domestic demand, supported manufacturing expansion and built an enormous materials ecosystem before most competitors recognized how important batteries would become.
But China Is Beginning to Face the Cost of Its Own Industrial Policy
In 2026, Beijing itself began tightening oversight of local-government subsidies.
The reason is important.
China is increasingly concerned about overcapacity and destructive internal price competition.
Local governments competed aggressively to attract strategic manufacturing projects, sometimes creating more factories than economic demand justified.
The central government is now trying to limit unauthorized subsidies and reduce this competition.
This is the paradox of China's industrial model.
Massive scale pushed costs down and created global champions.
But excessive capacity can also destroy margins and create dependence on exports.
However, China Cannot Be Dismissed in the Robot Battery Race
This is the most important counterargument.
It would be a mistake to assume that China is an LFP country while Korea and Japan own high-performance batteries.
China is simultaneously investing in high-energy-density batteries, sodium-ion technology, fast charging, semi-solid and solid-state batteries.
More importantly, China currently has an enormous advantage in the robots themselves.
Reuters reported in August 2026 that Chinese manufacturers are already dominating global humanoid robot shipments.
China's robot industry also benefits from dense domestic supply chains for motors, reducers, sensors, electronics and batteries.
If China combines that robot-manufacturing scale with next-generation high-density batteries, it can potentially reproduce the same integrated model that succeeded in EVs.
Korea and Japan therefore have an opportunity — not a guaranteed victory.
Physical AI Could Also Change the Economics of the Battery
An EV buyer is extremely sensitive to battery cost because the battery is often the most expensive single component of the vehicle.
The economics of an industrial robot can be different.
Consider a robot that replaces repetitive labor in a high-value factory.
If a better battery allows that robot to operate significantly longer between charging cycles, its value can exceed the incremental cost of the battery.
This changes the purchasing equation from:
“What is the cheapest battery per kWh?”
to:
“How much productive work can this battery enable per kilogram, per charge and per hour?”
That shift favors high-performance engineering.
There Is Another Growth Market: ESS
Physical AI is not the only market emerging as EV growth becomes less predictable.
Global ESS battery shipments reached approximately 461.3 GWh in the first half of 2026, according to SNE Research.
That represented extraordinary growth of 71% year-on-year.
Even more interestingly, markets outside China accounted for 56% of global ESS shipments for the first time.
This explains why LG Energy Solution, Samsung SDI and other Korean suppliers are rapidly expanding ESS businesses in North America.
But here the battery requirements again favor LFP — meaning Chinese technology remains extremely competitive.
Korea therefore faces two very different opportunities:
catch China in low-cost LFP for ESS, while simultaneously defending its technological lead in higher-performance batteries for Physical AI.
Korea and Japan Should Not Try to Beat China at China's Own Game
China’s battery industry has enormous manufacturing scale and an integrated supply chain that would be extremely difficult to reproduce quickly.
Attempting to defeat Chinese manufacturers purely through lower battery cost may therefore be unrealistic.
A different strategy may make more sense.
Korean and Japanese manufacturers could concentrate more heavily on markets where battery performance has a higher economic value:
- Humanoid robots
- Industrial robots
- Drones
- Aerospace
- Defense systems
- Premium mobility
- AI factory equipment
- High-performance power tools
- Specialized autonomous machines
These markets may be smaller than EVs initially.
But they can be higher-value and less commoditized.
DATAAD View: After the Gigafactory Race Comes the Performance Race
The first stage of the global battery competition was about capacity.
China won that stage decisively.
The second stage became a cost competition.
LFP, massive supply chains and manufacturing scale strengthened China’s position even further.
But the arrival of Physical AI may introduce a third stage.
Performance.
A robot carries its own energy.
Every gram matters.
Every minute of runtime matters.
Every charging interruption reduces productivity.
Every burst of actuator power matters.
And safety becomes especially important when an autonomous machine operates directly beside humans.
Those requirements make high-energy-density, high-power and potentially solid-state batteries strategically important again.
This could create an important second opportunity for Korea and Japan.
Korea brings LG Energy Solution, Samsung SDI and SK On, a strong high-nickel battery heritage, advanced cylindrical technology and direct connections to major global automotive and robotics companies.
Japan brings Panasonic Energy, Toyota's extensive battery R&D, strong materials companies and a national strategy increasingly focused on both energy density and power density.
China still possesses enormous advantages in manufacturing, cost and supply-chain integration — and is simultaneously emerging as the world's largest humanoid manufacturing ecosystem.
The future battery market therefore may not produce one winner.
Instead, it could divide into several large markets:
China leading cost-driven mass batteries, while Korea and Japan compete for increasingly valuable high-performance battery applications — with all three racing toward the next chemistry.
The robot era could be where that competition starts again.
Sources: SNE Research Global EV & Battery Monthly Tracker, August 2026; Bank of America Institute, Physical AI Part 2, March 2026; Samsung SDI Newsroom and 2025 annual results; LG Energy Solution industry disclosures and Korean technology press; Japan Ministry of Economy, Trade and Industry Battery and Power Industry Strategy, June 2026; Panasonic Energy; CSIS Trustee Chair research on Chinese EV industrial policy; Reuters reporting on global battery and robotics industries. Figures are rounded and forward-looking robot estimates should be treated as scenarios rather than guaranteed outcomes.