FREQUENTLY ASKED QUESTIONS
1、Abundant raw material resources
Sodium is far more abundant in the earth’s crust than lithium. It does not rely on scarce minerals such as lithium, cobalt and nickel, ensuring stable supply chains free from overseas mineral restrictions.
2、Excellent low-temperature performance
It retains over 90% capacity at -20°C with little range attenuation in frigid environments, and supports normal charging at low temperatures, ideal for northern and high-altitude regions.
3、Fast charging and high power output
Sodium ions migrate rapidly, enabling high-rate fast charging for quick energy replenishment. It delivers strong instantaneous discharge power, suitable for start-stop systems, construction machinery and grid frequency regulation.
4、Higher safety level
It triggers thermal runaway at much higher temperatures, with low risks of fire or explosion under short-circuit and nail penetration tests and less dendrite formation, perfect for unattended energy storage and base station backup power.
5、Longer service life
Energy storage models achieve over 10,000 charge-discharge cycles, and power-type versions far outperform lead-acid batteries, cutting long-term replacement and maintenance costs.
6、Fast mass production deployment
Manufacturing equipment is compatible with existing lithium battery production lines. Factories can start production with minor modifications without heavy new investment.
7、More eco-friendly than lead-acid batteries
Free of toxic heavy metal lead with no pollution risks. It surpasses lead-acid batteries in energy density, weight and service life, serving as a full replacement for low-speed vehicles, marine start batteries and backup power for energy storage.
1. Raw Materials & Supply Chain
2. Production Cost
3. Energy Density
4. Low-temperature Performance
5. Charging & Power Performance
6. Safety Performance
7. Cycle Life
8. Application Scenarios
9. Production Compatibility
1. Choose Sodium-ion Batteries (SIB)
- Equipment operating in cold and high-altitude areas (extremely low temperature environment, -20℃ to -40℃)
- Communication base stations and data center backup power supply
- Low-speed electric vehicles, industrial forklifts and ship starting batteries
- Unmanned operation scenarios requiring high battery safety
2. Choose Lithium-ion Batteries (LIB)
- Scenarios requiring long range and lightweight design
- Scenarios with limited installation space and high energy density requirements
- New energy vehicles for passenger cars and portable consumer electronics
- High-precision industrial equipment and conventional commercial applications at room temperature
3. Core Selection Principle
4. Key Purchase & Application Notes
- Verify official technical parameters: cycle life, energy density and low-temperature performance data
- Confirm valid industry certifications (CE, UL, GB) for industrial and energy storage bulk procurement
- Select proper charge-discharge rate matching actual working load, avoid blind pursuit of high rate
- Confirm warranty policy and local after-sales maintenance service
- Use dedicated BMS for sodium-ion batteries; BMS parameters must match battery cell characteristics
1. General Tests (Applicable to both LIB & SIB)
1.1 Basic Electrical Performance Tests
- Capacity and energy density test
- Charge & discharge rate performance test
- Long-term cycle life aging test
- Overcharge and overdischarge protection test
- Internal resistance test
1.2 Environmental Adaptability Tests
- High and low temperature performance test
- Waterproof and insulation performance test
- Mechanical vibration test
1.3 Safety Abuse Tests
- Nail penetration test
- Extrusion and drop impact test
- External short circuit test
- Thermal runaway risk test
2. Special Tests for Lithium-ion Batteries
- Lithium dendrite growth detection
- High temperature thermal stability test
- Flammability and explosion risk assessment
- High-rate thermal shock test
3. Special Tests for Sodium-ion Batteries
- Ultra-low temperature (-40℃) full performance test
- Hard carbon anode structural stability test
- Special BMS compatibility matching test
- Long-term floating charge aging test for energy storage
4. Mandatory Certification Tests
1. Global Mandatory Transportation Certifications (All Shipping Modes)
- UN38.3: Indispensable core certification for cross-border battery transportation
- UN ID Code: UN3480/UN3481 for lithium-ion batteries; UN3551 for sodium-ion batteries
- IATA DGR: Compliance qualification for air cargo transportation
- IMDG Code: Compliance qualification for sea cargo transportation
2. Regional Market Access Certifications
2.1 European Union (EU)
- CE (LVD+EMC): Mandatory low voltage and electromagnetic compatibility certification
- RoHS: Restriction of hazardous substances certification
2.2 North America (USA & Canada)
- UL1973: Safety standard for stationary energy storage batteries
- UL2271: Safety standard for electric vehicle power batteries
2.3 Global General Certification
- CB Report: Internationally recognized electrical safety report for fast regional certification conversion
3. Scenario-Specific Professional Certifications
- Vehicle Batteries: UN R100 (EU automotive battery safety regulation)
- Stationary Energy Storage Batteries: IEC 62619 (International industry standard)
- Low-speed & Industrial Batteries: Comply with local target country standard certifications
4. Critical Export Notes
- UN38.3 test report is the basic prerequisite for all cross-border battery shipment
- Sodium-ion and lithium-ion batteries follow the same regional market access standards
- Complete all certification tests before mass export and customs declaration