Nickel zinc batteries pack for industrial devices
1Key Takeaways
This document specifies the terms, definitions, requirements, test methods, inspection rules, and requirements for marking, packaging, transportation, and storage of zinc-nickel battery packs for industrial equipment. Examples of equipment within the scope of this document using such battery packs include: - Stationa…
2Expert Interpretation
SJ/T 12203-2026 specifies technical requirements, test methods, and inspection rules for zinc-nickel battery packs used in industrial equipment, applicable to fixed and transport equipment. It covers performance tests including capacity, low-temperature, high-temperature, fast charging, internal resistance, and cycle life to ensure the safety and reliability of the battery packs.
Standard Overview
SJ/T 12203-2026 'Zinc-Nickel Battery Packs for Industrial Equipment' is an electronic industry standard of the People's Republic of China, issued by the Ministry of Industry and Information Technology, effective December 1, 2026. This standard applies to zinc-nickel battery packs used in fixed equipment (such as telecommunications, UPS, and energy storage systems) and transport equipment (such as forklifts and AGVs), excluding road vehicles. The standard specifies terminology, classification, model naming, technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation, and storage of battery packs.
Core Terminology and Definitions
This standard clarifies terms such as zinc-nickel storage batteries (nominal voltage 1.65V), zinc-nickel battery packs (composed of multiple cells), leakage, rupture, fire, explosion, etc., providing a unified basis for testing and judgment.
Main Technical Requirements and Test Methods
The standard covers 15 tests including appearance and markings, dimensions, mass, voltage, shell performance (non-metallic pressure resistance, insulation, flame retardancy; metallic corrosion resistance), rated capacity, low-temperature capacity (-20°C), high-temperature capacity (55°C), fast charging capability, AC internal resistance, charge retention capability, cycle durability (≥400 cycles, capacity ≥0.6C5), overcharging, reverse charging, mechanical shock, vibration resistance, and drop tests. The following is a comparison table of key performance indicators:
| Test Item | Requirement | Test Conditions |
|---|---|---|
| Rated Capacity | ≥C5 | 25°C, discharge at 0.2It to termination voltage |
| Low-Temperature Capacity | 0.2It: 0.8C5; 1.0It: 0.5C5 | -20°C, discharge after resting for 16～24h |
| High-Temperature Capacity | ≥0.9C5 | 55°C, discharge at 0.2It after resting for 6h |
| Fast Charging Capability | ≥0.95C5 | 1.0It fast charge ≤3h, discharge at 0.2It |
| AC Internal Resistance | ≤Manufacturer specified value | 1kHz, measure for 1-5s |
| Charge Retention Capability | ≥0.85C5 | Open circuit rest at 25°C for 28 days |
| Cycle Durability | ≥400 cycles, capacity ≥0.6C5 | Specific charge/discharge program (Table 6) |
| Overcharging | No rupture/fire/explosion, capacity ≥C5, temperature ≤60°C | Charge at 0.1It for 24h |
| Reverse Charging | No leakage/rupture/fire/explosion | Reverse charge at 0.1It for 90min |
| Mechanical Shock | No rupture/fire/explosion | 15g, 15ms, 3 times in each of three directions |
| Vibration Resistance | No rupture/fire/explosion, voltage ≥ rated value | 30-35Hz, 30g, 2h |
| Drop Test | No fire/explosion | Height corresponding to different masses, concrete plate |
Test Conditions and Instruments
Test environmental conditions are 25°C±5°C, relative humidity 25%～85%, atmospheric pressure 85～106kPa. Measurement instrument accuracy requirements: voltage, current ±1%, temperature ±2°C, time ±0.1%, dimensions, mass, capacity ±1%. Prior to testing, fully charge according to 6.3.2 (discharge at 0.2It to termination voltage, constant current/constant voltage charge at 0.2It until current drops to 0.05It, total time ≤7h).
Type Testing
Type testing requires 11 sets of samples, tested according to items specified in Table 8. The type test is deemed qualified only if all samples pass. It is conducted when products are standardized, restarted after production halt, or upon user request. Samples must be factory-qualified products; second-life batteries shall not be used.
Significance of the Standard
The formulation of this standard fills the gap in standards for zinc-nickel battery packs used in industrial equipment, providing a unified basis for product quality control and safety. Zinc-nickel batteries offer advantages such as high voltage, high power, and long cycle life; this standard helps promote their application in the industrial sector.