Detail of GB/T 44224-2024

Introduction of GB/T 44224-2024

GB/T 44224-2024 Secondary cells and batteries - Marking symbols for identification of their chemistry 1 Scope This document specifies the application principle, identification, durability, inspection method and judgment standard of chemical marking symbol for secondary cells and batteries. This document is applicable to the marking symbols for identification of lead acid batteries, lithium ion batteries, lithium metal batteries, nickel cadmium battery, nickel-metal hydride batteries, batteries, battery modules and monobloc batteries. This document is also applicable to the identification of the chemical properties of secondary cells and batteries at the installation, adjustment and decommissioning phases. 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 of the referenced documents (including any amendments) applies. GB/T 2900.41-2008 Electrotechnical terminology - Primary and secondary cells and batteries GB/T 15565-2020 Graphical symbols - Terms ISO 7000 Graphical symbols for use on equipment - Registered symbols Note: GB/T16273.1-2008 Graphical symbols for use on equipment - Part 1: Common symbols (ISO 7000:2004, NEQ) 3 Terms and definitions For the purposes of this document, terms and definitions defined in GB/T 2900.41-2008 and GB/T 15565-2020 as well as the following apply. 3.1 battery one or more cells fitted with devices necessary for use, for example case, terminals, marking and protective devices [Source: GB/T 2900.41-2008, 482-01-04] 3.2 cell basic functional unit, consisting of an assembly of electrodes, electrolyte, container, terminals and usually separators that is a source of electric energy obtained by direct conversion of chemical energy [Source: GB/T 2900.41-2008, 482-01-01, modified] 3.3 lead acid battery secondary battery with aqueous electrolyte based on dilute sulfuric acid, a positive electrode of lead dioxide and a negative electrode of lead [Source: GB/T 2900.41-2008, 482-05-01, modified] 3.4 lithium ion battery secondary battery with an organic solvent electrolyte and positive and negative electrodes which utilize an intercalation compound in which lithium is stored Note: A lithium ion battery does not contain lithium metal. [Source: GB/T 2900.41-2008, 482-05-07] 3.5 lithium metal battery battery which incorporates one or more lithium cells with an organic solvent electrolyte or a solid electrolyte, a positive electrode and a negative electrode composed of lithium metal 3.6 nickel cadmium battery battery with an alkaline electrolyte, a positive electrode containing nickel oxide and a negative electrode of cadmium [Source: GB/T 2900.41-2008, 482-05-02, modified] 3.7 nickel-metal hydride battery battery with an electrolyte of aqueous potassium hydroxide, a positive electrode containing nickel as nickel hydroxide and a negative electrode of hydrogen in the form of a metal hydride [Source: GB/T 2900.41-2008, 482-05-08] 3.8 valve regulated lead acid battery; VRLA battery in which cells are closed but have a valve which allows the escape of gas if the internal pressure exceeds a predetermined value Note: The cell or battery cannot normally receive additions to the electrolyte. [Source: GB/T 2900.41-2008, 482-05-15, modified] 3.9 secondary cell cell which is designated to be electrically recharged Note: Recharge is achieved by reversible chemical reaction. [Source: GB/T 2900.41-2008, 482-01-03, modified] 3.10 monobloc battery battery, with multiple separate but electrically connected cell compartments Note 1: Each of the cell compartment is designed to house an assembly of electrodes, electrolyte, terminals or intercell connections and possible separators. Note 2: The single cells in the whole battery are connected in series or in parallel. [Source: GB/T 2900.41-2008, 482-02-17, modified] 3.11 battery module group of cells connected together either in a series and/or parallel configuration to be used as power supply Note: Battery module is also called as battery. [Source: GB/T 19596-2017, 3.3.2.1.3., modified] 3.12 symbol visual image used to represent certain things or concepts and having simplified characteristics [Source: GB/T 15565-2020, 2.1.1] 3.13 marking line, shape, pattern, letter or symbol on the surface, which helps to identify features of product or material 3.14 label sheet with an adhesive layer containing information for application on products 4 Application principle 4.1 General Markings defined in Clause 5 are applicable to all products according to their size and configuration. Each end product in accordance with this document shall be marked in accordance with this clause before being placed on the market. In case of dismantling the batteries into monoblocs and modules for the purpose of reuse of the monoblocs and modules, additional marking of these monoblocs or batteries shall be carried out in accordance with this document. Single cells should not be marked in the event that they are fitted into batteries or modules. 4.2 Marking of electrochemical battery systems This marking is only applicable to secondary cells or batteries: a) lead acid (Pb), b) nickel cadmium (Ni-Cd), c) nickel metal hydride (Ni-MH), d) lithium ion (Li-ion), e) lithium metal (Li-metal). Batteries or modules applying more than one of these chemistries shall be marked for all applied chemistries. This marking is not applicable for batteries of other chemistries such as: a) flow batteries, b) sodium-sulfur high temperature batteries, c) Na-NiCl high temperature batteries, and d) all other chemistries not listed here. 4.3 Application of the markings on the battery The markings can be fixed on the battery either by printing, labelling, or other methods. The markings shall be applied on the battery or modules before these are placed on the market. The markings shall be visible, legible and indelible over the expected life of the batteries. The markings with the design described in Clause 5 may be integrated into existing printings or labels. The marking shall be placed on the displayed side to achieve good visibility. lf, due to design reasons or customer requirements, the marking cannot be placed on the displayed side, the size of the marking shall be as defined in 5.4.

Contents of GB/T 44224-2024