GB/T 46735.1-2025High-temperature secondary batteries - Part 1: General requirements (English PDF)

Foreword

This document is in accordance with GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting is scheduled.

This document is Part 1 of GB/T 46735 "High-Temperature Storage Batteries". GB/T 46735 has already published the following parts.

---Part 1: General Requirements;

---Part 3: Performance requirements and testing for sodium-based batteries.

This document is modified to adopt IEC 62984-1:2020 "High-temperature batteries - Part 1: General requirements".

This document has undergone the following structural adjustments compared to IEC 62984-1:2020.

---The tables in the symbols and abbreviations section (see Table 1 in IEC 62984-1:2020) have been removed. Tables 1 through 7 correspond to...

Tables 2 to 8 of IEC 62984-1:2020.

The technical differences between this document and IEC 62984-1:2020, and the reasons therefor, are as follows.

---IEC 60529 (see 5.2.2) has been replaced with the normatively referenced GB/T 4208 to adapt to my country's technical conditions;

---IEC 60068-2-64 (see 6.3.1.2) has been replaced with the normatively referenced GB/T 2423.56 to adapt to my country's technical conditions;

---IEC 61373 (see 6.3.1.3) has been replaced with the normatively referenced GB/T 21563 to adapt to my country's technical conditions;

---IEC 60068-2-75 (see 6.3.1.4) has been replaced with the normatively referenced GB/T 2423.55 to adapt to my country's technical conditions;

---IEC 60068-2-2 (see 6.3.2.1.2) has been replaced with the normatively referenced GB/T 2423.2 to adapt to my country's technical conditions;

---IEC 60068-2-1 (see 6.3.2.1.3) has been replaced with the normatively referenced GB/T 2423.1 to adapt to my country's technical conditions;

---IEC 60068-2-78 (see 6.3.2.1.4) has been replaced with the normatively referenced GB/T 2423.3 to adapt to my country's technical conditions;

---IEC 61000-4-2 (see Table 4, 6.3.3.2) has been replaced with the normatively referenced GB/T 17626.2 to adapt to my country's technical requirements.

condition;

---IEC 61000-4-3 (see Table 4, 6.3.3.3) has been replaced with the normatively referenced GB/T 17626.3 to adapt to my country's technical requirements.

condition;

---IEC 61000-4-4 (see Table 4, 6.3.3.4) has been replaced with the normatively referenced GB/T 17626.4 to adapt to my country's technical requirements.

condition;

---IEC 61000-4-5 (see Table 4, 6.3.3.5) has been replaced with the normatively referenced GB/T 17626.5 to adapt to my country's technical requirements.

condition;

---IEC 61000-4-6 (see Table 4, 6.3.3.6) has been replaced with the normatively referenced GB/T 17626.6 to adapt to my country's technical requirements.

condition;

---IEC 61000-4-11 has been replaced with the normatively referenced GB/T 17626.11 (see Table 4, 6.3.3.7.1) to adapt to my country's technical standards.

Technical conditions;

---IEC 61000-4-29 has been replaced with the normatively referenced GB/T 17626.29 (see Table 4, 6.3.3.7.2) to adapt to my country's technical standards.

Technical conditions;

---IEC 61000-4-34 (see 6.3.3.7.1) has been replaced with the normatively referenced GB/T 17626.34 to accommodate Chinese technical standards.

condition;

---CISPR25 (see 6.3.3.8.2) has been replaced with the normatively referenced GB/T 18655 to adapt to my country's technical conditions;

---IEC 62236-3-2 (see 6.3.3.8.2) has been replaced with the normatively referenced GB/T 24338.4 to adapt to my country's technical conditions.

The following editorial changes have been made to this document.

---IEC 62262(5.2.4) has been replaced with GB/T 20138, which is used for informational purposes.

---IEC 60721-3-2 has been replaced with GB/T 4798.2 (see 5.2.3.1) for informational purposes;

---Notes have been added (see Tables 2, 4, and 7);

---IEC 61000-6-3 (see 6.3.3.8.1) has been replaced with GB 17799.3 (see informative reference).

---IEC 61000-6-4 has been replaced with GB 17799.4 (see 6.3.3.8.1), which is used for informational reference.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Lead-acid Battery Standardization Technical Committee (SAC/TC69).

Introduction

With the rapid development of global energy structure transformation and large-scale application of renewable energy, high-temperature batteries, as a special type of environmentally adaptable battery, have become increasingly important.

High-performance energy storage technology has demonstrated significant advantages in areas such as grid frequency regulation, industrial backup power, off-grid energy storage, and special operating conditions. Its typical operating temperature...

The temperature range (typically.200°C~350°C) endows these batteries with high energy density, long cycle life, and excellent dynamic characteristics, but at the same time...

It also poses unique challenges to material stability, system safety, and operational reliability.

To standardize the research, development, production, and application of high-temperature battery technology, this document focuses on typical high-temperature battery systems such as sodium-based batteries.

This involves establishing a unified performance evaluation framework, safety technical requirements, and testing and verification methods. It also includes specifying the basic parameters and environmental characteristics of high-temperature battery systems.

This document provides technical benchmarks for all links in the industry chain, including environmental adaptability indicators, thermal management requirements, and failure mode protection measures, and helps to promote technological innovation.

Technological advancements and healthy market development.

GB/T 46735 "High Temperature Storage Batteries" is proposed to consist of three parts.

---Part 1: General Requirements. This section specifies requirements for mobile and/or stationary applications at high temperatures with a nominal voltage not exceeding 1500V.

General requirements, definitions and test methods for storage batteries.

---Part 2: Safety Requirements and Testing. The purpose is to specify requirements for mobile and/or stationary applications with a rated voltage not exceeding 1500V.

Safety requirements and testing procedures for high-temperature batteries.

---Part 3: Performance Requirements and Testing for Sodium-Based Batteries. The purpose is to specify the performance requirements and testing standards for mobile batteries with a rated voltage not exceeding 1500V.

Performance requirements and test methods for sodium-based high-temperature batteries used in stationary applications.

The purpose of this document is to unify technical specifications and safety requirements, and to clarify the definition of energy storage by establishing general technical requirements and performance testing standards.

This document outlines the design, production, and testing specifications for high-temperature environments to ensure that product quality and safety meet unified standards. It also addresses high-temperature environments.

The document sets forth specific requirements for key indicators of batteries, such as capacity decay, cycle life, and thermal stability, in order to improve the high-temperature performance and reliability of batteries.

This will drive companies to optimize battery materials and processes, and improve high-temperature cycle performance, thermal safety performance, and impedance performance. The formulation of this document can...

To promote the standardization and high-quality development of the industry, standards will guide technological upgrades and reduce competition from low-quality products, thus creating a favorable environment for the development of the new energy storage manufacturing industry.

Large-scale application provides technical support and helps build a modern energy system.

High-temperature batteries Part 1: General Requirements

1 Scope

This document specifies the general requirements, definitions, and specifications for high-temperature batteries with a nominal voltage not exceeding 1500V for mobile and/or stationary use.

Experimental methods.

This document applies to high-temperature batteries used in mobile and/or stationary applications with a nominal voltage not exceeding 1500V.

This document does not apply to aviation batteries covered by IEC 60952 (all parts) and electric batteries covered by IEC 61982 (all parts).

Storage batteries for propulsion of road vehicles.

Note. High-temperature batteries refer to electrochemical systems where the lowest internal operating temperature of a single cell exceeds 100°C.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2423.1 Environmental testing of electrical and electronic products – Part 2: Test methods – Test A. Low temperature (IEC 60068-2-1.

2007, IDT)

GB/T 2423.2 Environmental testing of electrical and electronic products – Part 2: Test methods – Test B. High temperature (IEC 60068-2-2.

2007, IDT)

GB/T 2423.3 Environmental testing – Part 2: Test methods – Test Cab. Constant damp heat test (GB/T 2423.3-2016, IEC 60068-2-78:2012, IDT) GB/T 2423.4-2008 Environmental testing of electrical and electronic products – Part 2: Test methods – Test Db. Alternating damp heat (12h) (12h cycle) (IEC 60068-2-30:2005, IDT) GB/T 2423.18-2021 Environmental testing—Part 2: Test methods—Test Kb. Salt spray, alternating (sodium chloride solution) (IEC 60068-2-52:2017, IDT) GB/T 2423.55-2023 Environmental testing—Part 2: Test methods—Test Eh. Hammer impact test (IEC 60068-2-75.

2014, IDT)

GB/T 2423.56-2023 Environmental Testing – Part 2: Test Methods – Test Fh. Broadband Random Vibration and Guidelines (IEC 60068-2-64:2019, IDT) Note. The content referenced in GB/T 2423.56-2023 has no technical differences from the content referenced in IEC 60068-2-64:2008.

GB/T 4208 Degrees of protection provided by enclosures (IP code) (GB/T 4208-2017, IEC 60529:2013, IDT) GB/T 17626.2 Electromagnetic compatibility testing and measurement techniques - Electrostatic discharge immunity test (GB/T 17626.2-2018) IEC 61000-4-2:2008 (IDT) GB/T 17626.3 Electromagnetic compatibility testing and measurement techniques – Part 3: Radio frequency electromagnetic field radiated immunity testing (GB/T 17626.3-2023,IEC 61000-4-3:2020,IDT) GB/T 17626.4 Electromagnetic compatibility testing and measurement techniques - Electrical fast transient/burst immunity test (GB/T 17626.4-2018, IEC 61000-4-4:2012, IDT) GB/T 17626.5 Electromagnetic compatibility testing and measurement techniques - Surge (impulse) immunity test (GB/T 17626.5-2019)