GB/T 45565-2025 Coding regulations of lithium-ion batteries English
1 Scope
This document specifies the coding regulations for lithium ion cells, lithium ion modules, lithium ion battery packs, lithium ion battery clusters and lithium ion battery systems (hereinafter collectively referred to as lithium ion batteries), including coding objects, coding structures, coding representation methods, coding identification, etc.
This document is applicable to the coding of consumer lithium ion batteries, high-power lithium ion batteries (except power lithium ion batteries for automobiles), low-power lithium ion batteries and energy storage lithium ion batteries. It may serve as a reference for other types of batteries.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 1988 Information technology - 7-bit Coded character set for information interchange
GB/T 12508 Alphanumeric character sets for optical recognition-Part 2: Character set OCR-B-Shapes and dimensions of the printed image
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
cell
device that realizes mutual conversion between chemical energy and electrical energy by moving lithium ions between cathode and anode, and is designed to be rechargeable
Note: such device consists of an assembly of electrodes, separators, electrolyte, container, terminals, etc.
3.2
module
group of cells connected in a series, parallel or in a series and parallel configuration with or without protective devices (e.g. fuse or positive temperature coefficient (PTC) thermistor) and monitoring circuitry
3.3
battery pack
energy storage device electrically coupled by one or more lithium ion cells or modules
Note 1: It incorporates the monitoring circuitry which provides information (e.g. cell voltage) to a battery system.
Note 2: It may incorporate a protective housing provided by terminals or other interconnection devices.
3.4
battery cluster
assembly of batteries connected in a series, parallel or in a series and parallel configuration
3.5
battery system
system which consists of one or more lithium ion cells, lithium ion modules, lithium ion battery clusters or lithium ion packs
Note 1: it has a battery management system which will act in case of over charge, over current, over discharge or overheat
Note 2: the over-discharge cut-off is not mandatory if an agreement is made between the battery manufacturer and the user.
Note 3: it may contain cooling or heating units, some of which have charge-discharge module, inverter module, etc.
3.6
repurposing
use of retired lithium ion battery in other fields as a whole or after disassembly, classification, inspection, repair or reorganization
3.7
coding
a character or a group of characters representing a specific thing or concept
Note: a character consists of Arabic numerals, capital English letters and symbols which are easy for people and machines to identify and process.
4 Coding object
The coding objects in this document mainly include consumer batteries, high power (except automobile power batteries) batteries, low power batteries and energy storage lithium ion batteries:
a) Consumer lithium ion batteries mainly refer to batteries used in mobile communication terminals, tablet computers, portable computers, wearable devices, etc.
b) High-power lithium ion batteries mainly refer to batteries used in electric ships, electric airplanes, etc.
c) Lower-power lithium ion batteries mainly refer to batteries used in electric bicycles, electric motorcycles (two-wheeled/three-wheeled), electric scooters, electric balance cars, etc.
d) Energy-storage lithium ion batteries mainly refer to batteries used in domestic energy storage, industrial and commercial energy storage, new energy storage, etc.
5 Coding structure
5.1 Coding structure of regular-sized lithium ion battery
The coding structure of regular-sized lithium ion battery mainly consists of two parts, the first part is a fixed coding segment and the second part is a non-fixed identification code. The schematic diagram of the coding structure is shown in Figure 1, and the description of the coding structure is shown in Table 1. The fixed coding segment and the non-fixed identification code shall be separated by a short horizontal separator "-". If the battery used by lithium ion battery comes from repurposing, the repurposing identification code shall be added between the fixed coding segment and the non-fixed identification code.
Note: regular-sized lithium ion batteries generally refer to the products with the largest surface area of the battery body greater than or equal to 10cm2.
5.2 Coding structure of small-sized lithium ion battery
5.2.1 General
The coding of small-sized lithium ion battery covers the body code of the battery and the smallest packaging unit code for carrying small-sized lithium ion battery, and the corresponding relationship between the body code of small-sized lithium ion battery and the smallest packaging unit code shall be established and recorded.
5.2.2 Coding structure of small-sized lithium ion battery
The coding structure of small-sized lithium ion battery body adopts enterprise-defined simplified codes, which shall at least include the production serial number code, and should include the enterprise code, specifications and other codes, and shall establish a corresponding relationship with the smallest packaging unit code and be recorded.
Note: small-sized lithium ion batteries generally refer to the products with the largest surface area of the battery body less than 10cm2.
5.2.3 Structure of smallest packaging unit code
The structure of smallest packaging unit code shall comply with the provisions of 5.1, and non-fixed identification code shall include the smallest packaging unit code and the number of small-sized lithium ion batteries of the same specification placed in the smallest packaging unit.
Note: The smallest packaging unit is the smallest carrying device needed to place a certain number of small-sized lithium ion batteries of the same specifications.
