Technology & Quality / Quality Control & Certificatio_Zishine Energy | MagSafe Power Bank & TWS Earbuds OEM/ODM Manufacturer

Full-Link Closed-Loop Quality Control System

4-level quality inspection mechanism to ensure zero defective delivery & perfect batch consistency

Level 1: Raw Material Molecular Screening

Adopt first-tier brand raw materials for cathode, anode, electrolyte and separator, with exclusive batch supply traceability
Full component purity testing, impurity content detection and moisture content inspection for each batch of materials
Eliminate unqualified raw materials with micro impurities to avoid internal cell hidden dangers
Ultra-low humidity warehouse storage & vacuum material transfer to prevent material deterioration

Level 2: On-Line Precision Process Inspection

+/-1um closed-loop control for electrode coating thickness to ensure consistent ion conduction
Real-time monitoring of rolling density, winding tension and sealing accuracy
AI visual full inspection for pole piece defects, scratches and burrs
Automatic data recording for each process, realizing full production traceability

Level 3: Semi-Finished & Finished Product Testing

Intermediate cell EIS impedance testing to screen abnormal internal structure cells
High-precision capacity grading, internal resistance and voltage sorting
Strict elimination of cells with inconsistent parameters to guarantee pack consistency
100% full inspection before delivery, no random sampling omission

Level 4: Batch Abuse Sampling Verification

Regular batch sampling for nail penetration, extrusion and high-temperature baking tests
Long-term cycle aging test & high and low temperature durability test
Simulate extreme working conditions to verify batch safety stability
Batch data comparison to monitor production quality fluctuation

Core Quality Control Advantages & Production Standards

Vehicle-grade manufacturing standard, superior batch consistency & ultra-low failure rate

Ultra-low Humidity Production Environment

The workshop maintains dew point <=-45C all year round, effectively preventing cell moisture absorption, bulging and capacity attenuation, ensuring long-term storage stability of finished batteries.

Ultra-high Batch Consistency

Strict capacity & internal resistance grading, finished battery pack overall voltage difference <=5mV, greatly reducing local overheating and inconsistent aging during pack operation.

Stable Mass Production Yield

After mature process iteration, the mass production yield of semi-solid cells is stably >=93%, with low batch defective rate, meeting large-scale GWh-level delivery requirements.

Quality Standard Comparison - Industry VS Zishine Energy

Quality Inspection Dimension	Industry General Standard	Zishine Energy Vehicle-Grade Standard
Workshop Dew Point	<=-35C	<=-45C
Battery Pack Voltage Difference	<=10mV	<=5mV
Mass Production Yield	>=90%	>=93%
Full Inspection Coverage	Partial Sampling	100% Full Inspection
Aging Test Duration	48h Standing	96h High-precision Aging

QUALITY DATA

Quality Metrics That Speak

Full Inspection Before Delivery

Mass Production Yield

High-Precision Aging Test

0mV

Pack Voltage Difference ≤

Global Authoritative Certification Qualifications

Full standard certification to support global market sales & project bidding

National Semi-solid Battery Standard

Comply with GB/T 43568-2026 national semi-solid lithium battery industry standard, fully compliant with domestic new energy industry specifications.

UN38.3 Aviation Certification

Pass UN38.3 air transportation safety certification, meeting international air transport standard, support global air freight delivery.

Vehicle-Grade Safety Certification

Pass third-party vehicle battery safety tests, adapt to passenger vehicles, commercial vehicles and special vehicle supporting scenarios.

Energy Storage Safety Certification

Meet international energy storage battery safety standards, applicable to household energy storage, commercial energy storage and grid energy storage projects.

GB/T 43568-2026 UN38.3 Vehicle Battery Safety Cert ESS International Standard Third-Party Test Report

Professional Testing & Verification Capability

Complete battery test platform covering electrical performance, environmental reliability & safety abuse testing

Electrical Performance Testing

Capacity grading, internal resistance, charge-discharge curves, cycle life and low-temperature discharge performance testing.

Environmental Reliability Testing

High/low temperature storage, thermal shock, humidity and vibration testing to verify stability under extreme environments.

Safety Abuse Testing

Nail penetration, extrusion, overcharge, short circuit and high-temperature baking testing for abuse-scenario safety.

EIS Impedance Analysis

Electrochemical impedance spectroscopy to screen abnormal internal structures and guarantee batch consistency.

Full Factory Audit Support

Open Shenzhen R&D center and GWh-level production base for customer on-site audit
Provide complete production process documents, quality management system files
Support production line visit, workshop observation and quality process inspection
Provide full batch quality traceability reports

Customized Test & Certification Service

Support customer-specified standard third-party testing & certification
Provide on-site witnessing test service for special project requirements
Custom quality inspection reports for overseas bidding & customs clearance
Provide long-term batch quality stability data report

Quality Core Concept

Quality Consistency Is The Lifeline Of Mass Production Delivery

Strict full-process control + full standard certification, create high-reliability semi-solid battery for global clients

Compliance Statement

All quality data and certification descriptions are based on actual mass production test data and valid third-party qualification certificates. No virtual data or exaggerated propaganda. All qualifications can be provided for customer verification at any time.

Quality Control & Certification