GB/T 42635-2023 (English Version)

Standard No.: GB/T 42635-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 42635-2023

Scope: Technical requirements, test methods, inspection rules, packaging, transportation and storage of lithium-ion batteries for space use. Lithium-ion batteries for spacecraft such as satellites, space stations and space probes

Introduction

1. Standard Overview

GB/T 42635-2023 "General Specification for Lithium-ion Batteries for Space Use" was proposed and coordinated by the National Technical Committee for Aerospace Technology and Its Application Standardization, and the main drafting unit is the Shanghai Space Power Source Research Institute. This standard specifies the technical requirements, test methods, inspection rules, and packaging, transportation and storage requirements for lithium-ion batteries for space use.

2. Comparison of standard frameworks

Dimensions	Technical requirements	Test methods	Key indicators
Appearance and logo	Intact and clear logo	Visual inspection	Surface is clean and polarity is clear
Sealing	Leak rate≤1.0×10^-7 Pa·m³/s	Air pressure test + nitrogen mass spectrometry leak detection	No leakage
Cycle life	LEO: 48,000 times, GEO: 2000 times	Charge and discharge cycle test	Performance decay rate control

3. Detailed explanation of technical requirements

3.1 Electrical performance test

The electrical performance of lithium-ion batteries includes key indicators such as capacity, efficiency and internal resistance. For example, the 0.2C₁A capacity test requires that the battery discharge capacity should not be less than the rated capacity. The test needs to be carried out at 20±3℃ and repeated three times to ensure stability.

3.2 Environmental adaptability

The environmental adaptability test includes performance evaluation under conditions such as high temperature, low temperature, vibration and radiation. For example, the high temperature capacity test requires that the battery discharge capacity at 40±3℃ is not less than 95% of the rated capacity.

4. Implementation Suggestions

Design phase: Ensure that the battery design meets the requirements of the space environment, including radiation resistance, vibration resistance, and high and low temperature adaptability.
Production phase: Strictly control the production process to ensure battery consistency and conduct comprehensive factory tests.
Use and maintenance: Store and transport in accordance with standard requirements, and regularly maintain the battery to extend its service life.

GB/T 42635-2023 Referenced Document

GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 2900.41 Electrotechnical terminology.Primary and secondary cells and batteries

GB/T 42635-2023 history

2023 GB/T 42635-2023 General specification for lithium-ion batteries for space use