South Korea's battery industry is in a long-term transformation period at the intersection of EV, ESS, and humanoid robot demand
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South Korea's battery industry is in a long-term transformation period at the intersection of EV, ESS, and humanoid robot demand
Morgan Stanley believes the South Korean battery value chain still has a long-term growth thesis, but in the short to medium term it must simultaneously cope with market-share pressure from Chinese players in Europe, weaker US BEV demand, and execution risks in converting capacity to ESS.
- The EV main theme continues to be driven by coordinated global policies and the electrification trend, while European regulatory compliance continues to support BEV demand.
- South Korean battery makers' market share in Europe remains under pressure, and the expansion of Chinese battery makers is the key competitive variable.
- US BEV sales remain under pressure after the phase-down of tax credits, but ESS is supported by AI-driven power demand, ITC safety, and localization incentives.
- South Korean battery makers shifting idle EV lines toward ESS could help improve utilization, but expansion, customer qualification, and cost execution remain risks.
- Humanoid robots are seen as a long-term incremental battery demand scenario, and the report cites long-term forecasts of 1bn installed base and US$7.5tn TAM by 2050.
Report interpretation
Overview
This report is Morgan Stanley Asia Summer School 2026's investor presentation on the South Korean battery industry, covering EV batteries, ESS storage, humanoid robot battery demand, and cathode cost trends. The core message is that the South Korean battery industry is undergoing a long-term structural transformation: EV demand continues to be driven by global policy and European regulation, ESS is becoming an important incremental market under AI-driven power demand and US policy incentives, and humanoid robots provide a longer-term potential TAM.
Core views
The core view is that the long-term demand curve for South Korea's battery industry remains upward, but the quality of growth and the competitive landscape are diverging. European BEV sales remain relatively healthy, with regulatory compliance pushing OEMs to continue electrification; US BEVs are under pressure after the phase-down of EV tax credits, and the relative growth of hybrids versus BEVs also needs to be tracked. In ESS, rapid US demand growth and policies such as non-FEOC content requirements and Section 45X favor South Korean manufacturers, but switching idle EV production lines to ESS is not equivalent to risk-free expansion. Competitively, Chinese battery makers continue to gain share in Europe, and the loss of share by South Korean manufacturers is a key pressure point highlighted in the report.
Analysis framework
The report uses a supply-chain and regional demand decomposition framework, separately examining global BEV sales, monthly sales in Europe/the US/China, major customer sales trends, EV battery TAM and installation demand, US ESS supply-demand balance, policy incentives, humanoid robot TAM, and cathode raw material cost trends. The conclusion is not centered on a single company's valuation, but rather on how the South Korean battery value chain's position is changing across the three demand curves of EV, ESS, and robotics.
Methodology notes
Break down BEV sales, penetration, and YoY growth across Europe, the US, and China.
This framework is used to assess the short- to medium-term momentum of EV battery demand, particularly distinguishing Europe’s regulation-driven demand, US subsidy phase-down pressure, and competition in the Chinese market.
Observe the impact of EU CO2 targets, the US ITC, Section 45X, and non-FEOC content requirements on demand and supply chains.
Policy variables are used to explain the resilience of European BEV demand and localization supply-chain opportunities in US ESS.
Map humanoid robot installed base, per-unit battery capacity, and regional TAM to potential battery demand.
This framework emphasizes that robotics is not the current earnings driver, but rather a long-term optional growth scenario for South Korea's battery industry.
Asset mapping & comparison
Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).
- LG Energy SolutionOne of the core South Korean battery manufacturers and a beneficiary of EV/ESS demand
- Strengths
- It has a global customer base and can benefit from US ESS demand, policy incentives, and improved utilization from redirecting idle EV lines to ESS.
- Weaknesses
- Declining share in Europe and pressure on US BEV demand will limit short-term growth elasticity.
- Comparison
- Relative to Chinese battery makers, its advantages lie in US policy support and non-FEOC supply-chain requirements; its disadvantage lies in competitive pressure on European market share.
- Risks
- ESS capacity conversion, customer qualification, cost control, and policy execution may fall short of expectations.
- Samsung SDIOne of the companies covered within South Korea's battery industry
- Strengths
- It participates in the high-end battery and energy-storage value chain and may benefit from long-term ESS and robotics demand.
- Weaknesses
- The report discloses that Morgan Stanley received investment-banking compensation from Samsung SDI in the past 12 months, and investors should pay attention to the potential conflict-of-interest disclosure.
- Comparison
- Like other South Korean battery makers, it faces Chinese competition and regional demand divergence.
- Risks
- Demand timing, competitive dynamics, raw-material prices, and policy changes.
- SK On / SK Innovation Co LtdA tracking target for the South Korean battery chain and EV sales of major customers
- Strengths
- Its exposure is linked to customer sales from Ford, Volkswagen, and HMG, giving it exposure to the US and global EV chain.
- Weaknesses
- US BEV demand is under pressure after the phase-down of tax credits, and customer sales volatility will affect installation demand.
- Comparison
- Relative to Chinese players expanding in Europe, South Korean manufacturers may have stronger localization advantages under the US policy environment.
- Risks
- Customer sales missing expectations, insufficient capacity utilization, and ESS transition execution risk.
- Chinese battery makersThe main competitors to South Korean battery makers in Europe
- Strengths
- They continue to expand market share in Europe, with prominent cost and scale advantages.
- Weaknesses
- In the US market, they may face restrictions from non-FEOC content requirements and localization policies.
- Comparison
- Chinese manufacturers are more competitive in Europe, while South Korean manufacturers relatively benefit in US ESS and compliant supply chains.
- Risks
- Trade policy, compliance restrictions, and changes in regional market access.
- ESS energy storage batteriesAn incremental demand asset driven jointly by AI power demand and US policy
- Strengths
- Demand is growing quickly, policy incentives are clear, and it can absorb part of the idle EV capacity.
- Weaknesses
- Production-line conversion is not frictionless and still requires product certification, customer development, and cost optimization.
- Comparison
- Relative to US BEVs, which face short-term pressure, ESS shows a clearer demand increment in the report.
- Risks
- Overly rapid capacity expansion, project delays, policy changes, and supply-chain bottlenecks.
Key data
- US ESS cell demandUp about 57GWh in 2025, expected to reach 279GWhThe report treats US ESS demand as a major beneficiary under the AI theme and policy incentives.
- Long-term humanoid robot market sizeBy 2050e, expected 1bn installed base and US$7.5tn TAMUsed to support the long-term argument that humanoid robots are one of the biggest opportunities in embodied intelligence.
- Humanoid robot battery demandAbout 2GWh/120GWh/650GWh in 2030/2040/2050 respectively, with 2-4kWh battery capacity per unitThe appearance of “2025” in the original title is likely an OCR error; based on the time-series context it is interpreted as 2050.
- Industry viewAsia Pacific Industry View In-LineThe industry view shown on the cover, not a single-stock rating.
- European share of South Korean battery makersContinuing to declineThe report explicitly notes that Chinese battery makers continue to expand share in Europe.
Impact & implications
The investment implication is that the South Korean battery value chain should not be linearly extrapolated solely from traditional EV penetration; regional policy, customer sales, storage-capacity conversion, and TAM from new applications must all be evaluated together. ESS may become a stronger source of demand support than short-term US BEVs, while humanoid robots provide long-term upside imagination; however, whether the theme can translate into sustainable earnings will depend on how South Korean manufacturers fare versus Chinese competitors in market share, cost curves, and execution capability.
Risks
- In the European market, South Korean battery makers continue to lose share to Chinese manufacturers.
- US BEV sales remain sluggish after the phase-down of tax credits.
- Execution, certification, and customer onboarding for converting idle EV lines to ESS may disappoint.
- Cathode and key raw-material price volatility may affect the cost curve.
- Policy incentives, non-FEOC rules, or localization requirements may change.
- The monetization cycle for humanoid robot TAM is long, making it difficult to contribute directly to profits in the short term.
What to watch
- Monthly European BEV sales, penetration, and the pace of OEM compliance execution.
- The gap in YoY growth between US BEV and HEV and the demand recovery after the phase-down of tax credits.
- Market-share changes of South Korean battery makers in Europe.
- US ESS supply-demand balance, order conversion, and execution of Section 45X/ITC-related policies.
- EV sales trends of customers related to LG Energy Solution, Samsung SDI, and SK On.
- Humanoid robot industry-chain partnerships, per-unit battery-capacity assumptions, and mass-production timelines.
- Cathode costs and price trends of key raw materials such as lithium and nickel.