R&D Innovation
Testing & Quality
Comprehensive testing protocols and quality assurance systems ensuring 99.9% defect-free production.
40+
Standardized
0.1%
Industry-leading
99.9%
Consistent
98+
Average
Quality Commitment
JHY implements rigorous testing and quality control at every stage of production. 100% of batteries undergo comprehensive testing before shipment, ensuring consistent performance and reliability.
Our quality management system is certified to ISO 13485 (medical devices) and ISO 9001, reflecting our commitment to excellence across all product categories.
Testing Stages
Raw Material Testing
100% inspection of incoming materials
•
Chemical composition analysis (ICP-MS)
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Particle size distribution (laser diffraction)
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Moisture content analysis
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Impurity detection (XRF)
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Physical property verification
Cell Manufacturing QC
In-process quality monitoring during production
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Electrode thickness measurement
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Coating uniformity inspection
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Cell sealing integrity test
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Weight consistency check
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Visual defect inspection
Pre-Shipment Testing
Comprehensive testing before delivery
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Capacity testing (full charge/discharge cycle)
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Internal resistance measurement
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Voltage stability verification
•
Leakage current test
•
Safety function validation
Reliability Testing
Long-term performance validation
•
1000+ cycle life testing
•
Temperature cycling (-40°C to +60°C)
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Thermal shock testing
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Humidity aging test
•
Vibration endurance test
Performance Testing
Capacity Testing
PROCEDURE:
Full charge at 0.5C to 4.2V, discharge at 0.5C to 2.8V
ACCEPTANCE CRITERIA:
≥95% of rated capacity
Cycle Life Testing
PROCEDURE:
1000 charge/discharge cycles at 1C rate, 20°C ± 5°C
ACCEPTANCE CRITERIA:
≥80% capacity retention
High-Rate Testing
PROCEDURE:
Discharge at 5C rate, measure voltage stability and temperature rise
ACCEPTANCE CRITERIA:
Voltage drop <10%, temperature rise <15°C
Low-Temperature Testing
PROCEDURE:
Discharge at -40°C, measure capacity and voltage profile
ACCEPTANCE CRITERIA:
≥60% capacity at -40°C
Self-Discharge Testing
PROCEDURE:
30-day storage at 20°C, measure capacity loss
ACCEPTANCE CRITERIA:
<2% monthly self-discharge rate
Thermal Cycling
PROCEDURE:
10 cycles from -40°C to +60°C, measure performance retention
ACCEPTANCE CRITERIA:
≥90% capacity after cycling
Safety Testing
Overcharge Test
TEST PROCEDURE:
Charge at 150% rated current to 150% rated voltage
EXPECTED RESULT:
No rupture, fire, or explosion
Overdischarge Test
TEST PROCEDURE:
Discharge to 0V and reverse charge at 2A
EXPECTED RESULT:
No rupture or performance degradation
External Short Circuit
TEST PROCEDURE:
Short circuit with 0.1Ω resistance for 30 minutes
EXPECTED RESULT:
No rupture, fire, or explosion
Thermal Abuse
TEST PROCEDURE:
Heat cell to 130°C in oven for 30 minutes
EXPECTED RESULT:
No rupture, fire, or explosion
Mechanical Abuse
TEST PROCEDURE:
Drop 10kg weight from 1 meter onto cell
EXPECTED RESULT:
No rupture or internal damage
Vibration Test
TEST PROCEDURE:
Vibration sweep 20Hz-2000Hz for 2 hours per axis
EXPECTED RESULT:
No performance degradation
Quality Control Systems
Statistical Process Control (SPC)
Real-time monitoring of production parameters
✓
X-bar and R charts
✓
Process capability analysis
✓
Trend monitoring
✓
Anomaly detection
Automated Inspection
Machine vision and automated testing systems
✓
Visual defect detection
✓
Dimensional measurement
✓
Electrical testing
✓
Thermal imaging
Traceability System
Complete batch and serial number tracking
✓
Raw material tracking
✓
Production logs
✓
Test data recording
✓
Recall capability
Quality Assurance Documentation
Request detailed test reports, quality certificates, and performance data for your applications.
Request Test Reports