Battery cells
Lithium-ion cells (LFP for stationary use, NMC/NCA mainly for EVs) and emerging sodium-ion and solid-state cells
8 leading companies in battery cells, one segment of energy storage — Battery cells and grid or behind-the-meter storage. 108 GW was added worldwide in 2025, up 40% on 2024 (IEA).
new market segment · researched 2026-11-14
Battery cellsUtility-scale battery storageLong-duration energy storageStorage system integrators & software
C
Leading battery cells companies
8 companies, with the scale each source states. Scale is the whole company's unless the row says otherwise.
| Company | Where | What they do | Scale |
|---|---|---|---|
| CATL (Contemporary Amperex Technology) 300750.SZ ↗ | Ningde, China since 2011 | Lithium-ion battery cells and systems for EVs and energy storage | revenue: 423.7 CNY billions (2025) ↗ |
| BYD 1211.HK ↗ | Shenzhen, China since 1995 | Makes vehicles and batteries, including its own cells and energy storage systems. Scale shown is revenue for the whole group. | revenue: 804 CNY billions (group, all segments) (2025) ↗ |
| LG Energy Solution 373220.KS ↗ | Seoul, South Korea since 2020 | EV and ESS lithium-ion batteries. It has moved some US capacity to LFP for the storage market, and it is the partner in Windsor's NextStar plant. | — |
| Samsung SDI 006400.KS ↗ | Yongin, South Korea since 1970 | Lithium-ion cells for EVs, energy storage and electronics | revenue: 17.24 USD billions (company total) (2023) ↗ |
| SK On ↗ | Seoul, South Korea | Lithium-ion battery cells, mainly for EVs | — |
| EVE Energy 300014.SZ ↗ | Huizhou, China since 2001 | Lithium-ion cells, including LFP cells for energy storage | — |
| NextStar Energy ↗ | Windsor, ON, Canada | Windsor plant that began EV battery modules in 2024 and ESS battery cells in November 2025 | investment (total announced): 5,000 CAD millions (2,500 jobs) (2026) ↗ |
| Electrovaya ELVA ↗ | Mississauga, ON, Canada since 1996 | Lithium-ion batteries and battery systems for material handling, heavy-duty vehicles and energy storage. It has operations in New York State. | — |
CA
In Canada
- 2026-10NextStar Energy's C$5B Windsor plant (2,500 jobs) began making battery cells for energy storage systems in November 2025, after starting EV modules in 2024. Federal production support is between C$9,704M and C$14,556M (SCA), plus C$500M (SRF) and C$4,852M from the province. ↗
M
The energy storage market
The whole market this segment sits in.
installed capacity (annual battery storage additions, utility-scale + behind-the-meter) · world108
↗GW · 2025
Growth, segments, risks and every company in energy storage →
Quick answers
- What are battery cells?
- Lithium-ion cells (LFP for stationary use, NMC/NCA mainly for EVs) and emerging sodium-ion and solid-state cells. They are one segment of the energy storage market.
- Who are the leading battery cells companies?
- CATL (Contemporary Amperex Technology) (China), BYD (China), LG Energy Solution (South Korea), Samsung SDI (South Korea), SK On (South Korea), EVE Energy (China), NextStar Energy (Canada), Electrovaya (Canada).
- Which battery cells companies are publicly traded?
- CATL (Contemporary Amperex Technology) (300750.SZ), BYD (1211.HK), LG Energy Solution (373220.KS), Samsung SDI (006400.KS), EVE Energy (300014.SZ), Electrovaya (ELVA).
- Which Canadian companies are in battery cells?
- NextStar Energy, Windsor, ON; Electrovaya, Mississauga, ON.
- How big is the energy storage market?
- For the whole energy storage market, not this segment alone: installed capacity (annual battery storage additions, utility-scale + behind-the-meter) (world) 108 GW, 2025 — International Energy Agency.