R&D Innovation
Technical Standards
JHY adheres to and contributes to international technical standards for battery performance, safety, and environmental impact.
25+
Adopted
50+
Defined
40+
Validated
100+
Monitored
Standards Philosophy
JHY is committed to maintaining technical standards that exceed industry requirements. We actively participate in standards development organizations and contribute to the evolution of battery technology specifications.
Our internal standards often exceed external requirements, ensuring superior product quality and reliability for our customers.
Performance Standards
Energy Density
•
Volumetric energy density: 600+ Wh/L
•
Gravimetric energy density: 200+ Wh/kg
•
Measurement method: Constant current discharge
•
Reference conditions: 20°C ± 5°C
Discharge Rate
•
Continuous discharge: 3-5C rated
•
Peak discharge: 10C for 10 seconds
•
Voltage stability: ±5% across discharge
•
Temperature rise: <15°C at 5C rate
Cycle Life
•
Minimum cycles: 1000+ at 1C rate
•
Capacity retention: >80% after 1000 cycles
•
Charge/discharge voltage: 2.8-4.2V nominal
•
Test temperature: 20°C ± 5°C
Temperature Performance
•
Operating range: -40°C to +60°C
•
Storage range: -20°C to +45°C
•
Thermal stability: <10% capacity loss at extremes
•
Recovery: Full performance after thermal cycling
Voltage Characteristics
•
Nominal voltage: 3.7V ± 0.1V
•
Charging voltage: 4.2V ± 0.05V
•
Discharge cutoff: 2.8V minimum
•
Voltage stability: <2% variation during discharge
Self-Discharge
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Monthly rate: <2% per month
•
Annual rate: <10% per year
•
Measurement: After 30-day storage at 20°C
•
Initial charge: Full charge before testing
Safety Standards
Overcharge Protection
Cells must survive 150% overcharge without rupture or fire
JHY Specification: Internal protection circuit limits to 4.35V maximum
Overdischarge Protection
Cells must survive complete overdischarge without damage
JHY Specification: BMS cuts off discharge at 2.5V to prevent damage
Short Circuit
Cells must survive external short circuit without rupture
JHY Specification: Internal resistance limits current to <50A for 1 minute
Thermal Abuse
Cells must survive heating to 130°C without rupture
JHY Specification: Thermal runaway prevention at 150°C with safety vent
Mechanical Abuse
Cells must survive mechanical impact without rupture
JHY Specification: Robust casing withstands 10kg weight drop from 1 meter
Vibration
Cells must survive vibration without internal damage
JHY Specification: Tested to 20Hz-2000Hz sweep per MIL-STD-810
Environmental Standards
Restriction of Hazardous Substances
✓
Lead: <0.1% by weight
✓
Mercury: <0.1% by weight
✓
Cadmium: <0.01% by weight
✓
Chromium VI: <0.1% by weight
✓
PBB: <0.1% by weight
✓
PBDE: <0.1% by weight
Registration, Evaluation, Authorization of Chemicals
✓
SVHC screening: All materials assessed
✓
Substance declaration: >0.1% w/w
✓
Supply chain: Full traceability maintained
✓
Documentation: Complete technical files
Waste Electrical & Electronic Equipment
✓
Collection: Producer responsibility
✓
Recycling: >65% material recovery
✓
Hazardous waste: Proper handling required
✓
Labeling: Crossed-out bin symbol required
EU Battery Regulations
✓
Mercury: <5 ppm in alkaline batteries
✓
Cadmium: <20 ppm in portable batteries
✓
Lead: <40 ppm in portable batteries
✓
Labeling: Capacity and chemistry marked
Standards Development Participation
IEC (International Electrotechnical Commission)
• TC 21 - Secondary Cells
• TC 21/SC 21A - Batteries for portable equipment
ISO (International Organization for Standardization)
• ISO/TC 100 - Batteries
• ISO/TC 176 - Quality Management
IEEE (Institute of Electrical and Electronics Engineers)
• P1625 - Rechargeable Batteries
• P1680 - Environmental Assessment
ANSI (American National Standards Institute)
• Battery Standards Committee
• Safety Standards Working Group
GB (China National Standards)
• GB/T 31241 - Portable Battery Safety
• GB/T 35234 - Energy Storage
Industry Associations
• China Battery Industry Association
• Global Battery Alliance
Technical Specifications & Standards
Download detailed technical specifications and standards compliance documentation.
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