Battery Testing

Applicable materials: Suitable for lithium-ion battery materials (ternary materials, lithium iron phosphate, lithium manganese oxide, lithium cobalt oxide, etc.), lead-acid battery materials (lead plates, electrolytes, etc.), nickel hydrogen/nickel cadmium battery materials, fuel cell materials (proton exchange membranes, catalysts, etc.), solid-state battery materials, and various battery packaging materials.

Applicable products: including lithium-ion batteries (cylindrical, square, soft pack), lead-acid batteries, nickel hydrogen batteries, nickel cadmium batteries, fuel cells, supercapacitors, power battery packs/systems, energy storage batteries, portable electronic device batteries, mobile power banks, and various battery packs and battery management systems.

Applicable scenarios: Used for raw material incoming inspection, battery cell/module/system performance verification, safety performance evaluation, environmental adaptability testing, cycle life assessment, production process quality control, in-service equipment monitoring, failure analysis, and quality arbitration testing.

Chemical composition analysis: detection of electrode material element content, electrolyte composition, diaphragm material, metal impurity content, harmful substances (mercury, cadmium, lead, etc.), and material compliance judgment.
Electrical performance testing: rated capacity, actual capacity, energy density (mass/volume), power density, DC internal resistance, AC internal resistance, open circuit voltage, operating voltage, charge and discharge efficiency, self discharge rate, rate performance, voltage consistency, capacity retention rate.
Safety performance testing: overcharge, overdischarge, short circuit (external/internal), needle puncture, compression, heavy object impact, drop, thermal abuse (high temperature/thermal shock), vibration, collision, low pressure, seawater immersion, combustion, thermal runaway propagation, explosion-proof performance testing.
Environmental adaptability testing: high and low temperature cycling, temperature shock, wet heat cycling, salt spray corrosion, mold testing, sand and dust testing, high-altitude simulation, waterproof and dustproof (IP level) testing.
Life and reliability testing: standard cycle life, accelerated life test, calendar life, cycle capacity decay, internal resistance growth, changes in charge and discharge efficiency, storage performance, and cycle durability evaluation.
Physical and structural testing: external dimensions, weight, pole ear strength, packaging sealing, membrane porosity, electrode thickness, battery assembly accuracy, insulation resistance testing.
Electrochemical performance testing: cyclic voltammetry, AC impedance, charge discharge curve, rate characteristics, Coulomb efficiency, SOC/SOH estimation accuracy verification.
Failure analysis: thermal runaway causes, internal short circuit analysis, material aging, structural failure, performance degradation mechanism, safety failure mode determination.