Theme and Background
This chapter focuses on the central role of battery energy storage systems (BESS) in the global energy transition. The report points out that driven by economic growth, electrification, and the explosion of AI and data centers, global electricity demand is expected to grow by 157% by 2050, posing severe challenges to grid reliability. In this context, BESS has shifted from "optional" to "essential," with lithium-ion batteries (especially LFP technology) dominating the market due to their advantages in safety, durability, and cost.
Core Thesis
The author's core investment thesis is: Battery energy storage has entered a phase of structural growth, and lithium is an irreplaceable key material in this trend. Counterintuitive judgments include:
- Although EVs were once the primary driver of lithium demand, BESS and AI data centers are emerging as new growth poles, with EVs and BESS expected to account for 91% of global lithium demand by 2035.
- Lithium supply is highly concentrated (Australia, Chile, China, and Zimbabwe account for over 80% of global production), and processing bottlenecks and geopolitical risks will pose long-term challenges to future supply, which in turn strengthens the long-term investment value of lithium assets.
Key Arguments and Data
1. Record Growth in BESS Deployments:
- In 2025, global new energy storage additions reached 112 GW/307 GWh, a year-on-year increase of 48%; in 2026, it is expected to reach 158 GW/459 GWh, a further increase of 41%.
- China dominates the market: accounting for 54% of global new capacity in 2025, with 61 GW deployed in a single year.
- The United States and Europe follow closely, while Australia, the Middle East, Africa, and Latin America are beginning to scale up.
2. Driving Factors:
- Renewable energy expansion: In 2025, global additions total approximately 800 GW (+16% year-on-year), with solar power exceeding 600 GW; by 2030, global renewable energy will increase by 4,600 GW, with solar accounting for 80%.
- Data center demand: The number of hyperscale data centers is expected to grow from 3,207 in 2026 to 3,558 by 2035; global data center electricity demand could increase 2.5-fold by 2030, approaching Japan's total electricity consumption.
3. Technology Pathways:
- LFP batteries, due to their high thermal stability (reducing fire risk), long cycle life (thousands of charge-discharge cycles), and low cost, have become the preferred choice for BESS.
- Among the three mainstream lithium-ion battery types (LFP, NMC, LCO), LFP holds advantages in safety and economy.
4. Supply Concentration:
- Lithium production distribution in 2025: Australia, Chile, China, and Zimbabwe together account for over 80%.
| Indicator |
Data |
| Global BESS new capacity in 2025 |
112 GW / 307 GWh |
| Year-on-year growth rate in 2025 |
48% |
| Expected new capacity in 2026 |
158 GW / 459 GWh |
| China's share of new additions in 2025 |
54% |
| China's single-year deployment in 2025 |
61 GW |
| Global renewable energy additions in 2025 |
~800 GW (+16%) |
| Global renewable energy additions by 2030 |
4,600 GW (solar accounts for 80%) |
| EV + BESS lithium demand share by 2035 |
91% |
| Production share of top four lithium-producing countries |
>80% |
Companies/Assets Involved
This chapter does not name specific listed companies but explicitly mentions the following key assets/technologies:
- LFP Lithium Batteries: The current dominant BESS technology, with representative companies including Chinese battery giants such as CATL and BYD (not directly named in the original text, but common industry knowledge).
- Lithium Mining Countries/Regions: Australia, Chile, China, and Zimbabwe — the core source of supply concentration risk.
- BloombergNEF (BNEF) and IEA: Used as data sources, with their forecasts supporting the growth logic.
Investment Implications
- Go long on upstream lithium assets: With concentrated supply and structurally growing demand (EV + BESS + data centers), lithium miners and processors possess long-term pricing power.
- Focus on the midstream BESS supply chain: LFP battery manufacturers and system integrators will directly benefit from the explosive phase of 40%+ annual deployment growth.
- Watch for geopolitical risks: China dominates the processing stage (accounting for approximately 60% of global lithium chemical capacity), and supply chain diversification (e.g., projects in North America and Australia) could become a source of policy-driven excess returns.
Theme and Background
This chapter focuses on the strategic shift in lithium's position driven by demand from battery energy storage systems (BESS). The report points out that as BESS becomes a core component of grid infrastructure, lithium demand is transitioning from being primarily driven by electric vehicles (EVs) to a broader "electrification of everything" landscape. The core contradiction facing the market is a structural imbalance between continuously rising demand and slow supply expansion.
Core Thesis
The author's core investment argument is: Lithium has evolved from a mere EV commodity into a strategic asset in the realm of energy security. Counterintuitive judgments include:
- Despite a significant price correction for lithium in 2023-2025, the market is shifting from surplus to deficit, with prices entering a new upward phase.
- BESS demand is more resilient than the market generally expects, as it is driven by long-term infrastructure investment rather than consumer sentiment or subsidy policies.
- Governments are shifting from subsidies to direct equity stakes and financing, and lithium's "strategic asset" attribute is being confirmed at the policy level.
Key Arguments and Data
1. Demand Growth and Supply Bottlenecks:
- Lithium demand is expected to grow 3 times from 2021 to 2026 (Figure 7).
- Lithium prices surged approximately 15 times from 2020 to the end of 2022, followed by a significant decline in 2023-2025.
- Analysts predict the lithium market will shift from a surplus in 2025 to a deficit, as demand growth outpaces supply expansion.
2. Unique Demand Structure of BESS:
- Unlike EV demand, which is influenced by consumer spending, economic conditions, and subsidies, utility-scale energy storage is driven by long-term infrastructure investments. Project planning occurs years in advance, making demand more predictable and less cyclical.
- Global electricity demand is accelerating due to transportation electrification, industrial activity, AI, and data center expansion. Concurrently, record installations of solar and wind power increase the need for flexible energy storage.
3. Supply Challenges:
- China controls 70% of the world's lithium refining capacity.
- Lithium projects face multi-year permitting cycles, financing hurdles, technical complexities, and processing bottlenecks.
- Governments are securing supply through direct equity stakes (e.g., the U.S. government's stake in Lithium Americas' Thacker Pass project) and bilateral agreements.
4. Price Performance:
- As of May 31, 2026, lithium spot prices have risen 52.31% year-to-date and 206.58% over the past 12 months (Figure 8).
- The report argues the market is no longer trading on a simple "surplus" narrative.
Companies/Assets Involved
| Company/Asset |
Role |
Key Data |
Bullish/Bearish |
| Lithium Americas (Thacker Pass) |
U.S. domestic lithium supply project |
U.S. government holds equity stake |
Bullish (as a strategic asset) |
| Lithium Spot Price (L4CNMJGO Index) |
Market benchmark |
YTD +52.31%, 12-month +206.58% |
Bullish (entering new upward phase) |
Investment Implications
- Go long on lithium miners and refiners: The cycle of supply deficit expectations and price recovery has begun, especially for companies with producing or near-production projects.
- Focus on BESS-related lithium demand: As BESS represents long-term infrastructure investment, its demand growth may exceed current forecasts. Prioritize lithium suppliers benefiting from grid-scale energy storage.
- Avoid risks tied to reliance on Chinese processing capacity: China controls 70% of refining capacity. Geopolitical risks and policy changes (e.g., export restrictions) could exacerbate supply tightness, favoring non-Chinese lithium processors.
- Be wary of short-term volatility: Despite a long-term bullish outlook, technical and environmental hurdles in lithium project development may cause periodic price fluctuations. Investors need patience to hold positions.