General specification for lithium-ion batteries and battery packs for service robots SJ/T11852-2022

**General Specification for Lithium-Ion Batteries and Battery Packs for Service Robots (SJ/T 11852-2022)**  

**1. Scope**  

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for lithium-ion batteries and battery packs used in **service robots**. It applies to batteries and packs designed for robots in household, commercial, and industrial service applications.  

**2. Normative References**  

References include Chinese national standards (GB/T, GB) and industry standards (SJ/T) related to battery safety, performance, and environmental testing. Examples:  

- GB 31241: Safety requirements for lithium-ion batteries  

- GB/T 18287: General specifications for lithium-ion cells  

**3. Terms and Definitions**  

Key definitions include:  

- **Service Robot**: Electromechanical devices performing tasks autonomously or semi-autonomously (e.g., cleaning, logistics, healthcare robots).  

- **Battery Pack**: Assembly of cells with management circuitry, connectors, and casing.  

**4. Technical Requirements**  

**4.1 Electrical Performance**  

- **Capacity**: Rated capacity must meet declared values under specified conditions.  

- **Cycle Life**: Minimum cycles (e.g., ≥500 cycles at 80% capacity retention).  

- **Energy Density**: Requirements for volumetric and gravimetric energy density.  

**4.2 Safety Requirements**  

- **Overcharge/Overdischarge Protection**: Must withstand specified overcharge/overdischarge thresholds without failure.  

- **Short-Circuit Protection**: Packs must include safeguards against short circuits.  

- **Thermal Stability**: No fire, explosion, or leakage under high-temperature tests (e.g., 130°C).  

**4.3 Environmental Adaptability**  

- **Temperature Range**: Operational and storage temperature limits (e.g., -20°C to 60°C).  

- **Humidity Resistance**: Functionality maintained under high humidity (e.g., 90% RH).  

**4.4 Mechanical Robustness**  

- **Vibration/Shock Resistance**: Compliance with specified vibration frequencies and shock profiles.  

- **Drop Test**: Survival from defined drop heights without critical damage.  

**5. Test Methods**  

- **Electrical Tests**: Capacity verification, cycle life testing, charge/discharge efficiency.  

- **Safety Tests**: Overcharge, forced discharge, short circuit, thermal abuse, crush, and impact tests.  

- **Environmental Tests**: Temperature cycling, humidity exposure, altitude simulation.  

- **Mechanical Tests**: Vibration, shock, and free-fall tests.  

**6. Marking and Documentation**  

- **Labeling Requirements**: Must include rated voltage, capacity, polarity, manufacturer, production date, and safety warnings.  

- **User Manual**: Instructions for safe handling, charging, disposal, and emergency procedures.  

**7. Packaging, Transportation, and Storage**  

- **Packaging**: Must prevent short circuits and physical damage; compliant with UN 38.3 for transport.  

- **Storage Conditions**: Temperature and humidity limits for long-term storage.  

**8. Compliance and Certification**  

- Requires testing by accredited laboratories.  

- Products must pass all safety and performance criteria to obtain certification.  

**Key Alignment with International Standards**  

- Integrates requirements from IEC 62133 (battery safety) and UN 38.3 (transport safety).  

- Adds service-robot-specific robustness criteria (e.g., vibration profiles mimicking robot movements).  

**Note**: For full details, obtain the official Chinese standard document via the **Chinese Ministry of Industry and Information Technology (MIIT)** or authorized platforms.