China is accelerating the commercial deployment of sodium-ion batteries, complementing lithium-ion technology in EVs, commercial vehicles, and utility-scale energy storage
Sodium-Ion Batteries: A Strategic Energy Option
As China pushes for a more diversified battery ecosystem, sodium-ion batteries are gaining traction as a complement rather than a replacement for lithium-ion batteries.
- Abundant raw material: Sodium is widely available domestically, unlike lithium, whose imports reached 7.75 million metric tons in 2025.
- Unique performance edge: Superior low-temperature behavior and fast charging, making it ideal for commercial vehicles and harsh climates.
Commercialization Moves Ahead
Chinese companies are leading global deployment:
- CATL: Launched the Naxtra sodium-ion battery in 2025; powering passenger EVs with 400+ km range and integrating into 1,000+ battery-swap stations across 45 cities.
- BYD: Expanding sodium battery production, targeting 50 GWh annual capacity.
- HiNa Battery: Deployed sodium-ion batteries for EVs, scooters, heavy trucks, and China’s first 50 MWh large-scale storage station in Guangxi.
Insight: Sodium-ion batteries excel in applications where energy density is less critical but reliability, low-temperature performance, and fast charging are essential.
Cost and Technology Considerations
- Current price: ~0.6 yuan/Wh, higher than lithium-ion (~0.4 yuan/Wh) due to nascent supply chains.
- Energy density is lower, requiring larger, heavier packs for equivalent capacity.
- Hybrid solutions combining sodium and lithium could balance range, performance, and stability, pointing to co-development rather than replacement.
Takeaway: As production scales and supply chains mature, cost gaps will shrink, enabling broader adoption in commercial vehicles and large-scale energy storage.
Applications Beyond Passenger Vehicles
- Commercial Trucks:
- HiNa’s sodium-ion truck battery can fully charge in ~20 minutes
- Performs in temperatures as low as –40°C
- Utility-Scale Energy Storage:
- Larger, heavier batteries are less of a constraint
- Supports China’s 2025–27 energy storage plan for grid stability and renewable integration
- Hybrid & Future Scenarios:
- Sodium-lithium hybrid packs can balance cold performance, range, and efficiency
- Opens opportunities in industrial, commercial, and remote-area energy solutions
ZH Sailing Insight
China is establishing technological and market leadership in sodium-ion batteries, creating a new frontier for:
- Energy security via abundant domestic resources
- EV industry diversification, complementing lithium-ion
- Grid-scale energy storage, especially in remote or extreme environments
For investors and industrial players: Monitoring sodium-ion technology adoption and hybrid solutions will be key to capturing the next wave of energy innovation in China.