Detail of GB/T 23636-2017

Introduction of GB/T 23636-2017

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 23636-2009 Plate for lead-acid battery. The following main technical changes have been made with respect to GB/T 23636-2009: ——The clause “scope” is modified by adding the contents of unformed plate (see Clause 1; Clause 1 of Edition 2009); ——The contents of “terms and definitions” are modified (see Clause 3; Clause 3 of Edition 2009); ——The requirements and test methods of “plate rated capacity” are added (see 4.1 and 6.2); ——The requirements and test methods of “unformed plate composition” are added (see 4.3.3 and 6.4); ——The requirements and test methods of “cadmium content” are added (see 4.4 and 6.4.7); ——The contents of “inspection procedures” are modified (see 7.4; 8.4 of Edition 2009); ——The contents of “marking, packaging and storage” are modified (see Clause 8; Clause 9 of Edition 2009); ——“Annex A (Informative) Combined determination of iron and cadmium - Atomic spectrometry or mass spectrometry” is added. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights. This standard was proposed by China Electrical Equipment Industrial Association. This standard is under the jurisdiction of the National Technical Committee on Lead-acid Batteries of Standardization Administration of China (SAC/TC 69). The previous edition of this standard is as follows: ——GB/T 23636-2009. Plate for lead-acid battery 1 Scope This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, and storage of plate for lead-acid battery (including processed plate and unformed plate for lead-acid battery). It is applicable to the processed plate and the unformed plate for lead-acid battery. 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 document (including any amendments) applies. GB/T 622 Chemical reagent - Hydrochloric acid GB/T 625 Chemical reagent - Sulfuric acid GB/T 626 Chemical reagent - Nitric acid GB/T 631 Chemical reagent - Ammonia solution GB/T 643 Chemical reagent - Potassium permanganate GB/T 676 Chemical reagent - Acetic acid GB/T 678 Chemical reagent - Ethanol GB/T 694 Chemical reagent - Sodium acetate anhydrous GB 1254 Working chemical - Sodium oxalate GB/T 1266 Chemical reagent - Sodium chloride GB/T 1294 Chemical reagent - Tartaric acid GB/T 1400 Chemical reagent - Hexamethylene tetramine GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 2900.41 Electrotechnical terminology - Primary and secondary cells and batteries GB/T 6684 Chemical reagent - Hydrogen peroxide 30% GB/T 6685 Chemical reagent - Hydroxylammonium chloride GB/T 6782 Food additive - Sodium citrate GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 12593 Working chemical - Ethylenediaminetetraacetic acid disodium salt GB/T 15347 Chemical reagent - L(+)-Ascorbic acid HG/T 3454 Chemical reagent - Thiourea 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 2900.41 and the following apply. 3.1 plate battery electrode composed of current collector, active material and added accessories. It is the general term of processed plate and unformed plate 3.2 processed plate plate of which the product is formed and the main active material is lead or lead dioxide 3.3 unformed plate plate of which the product is unformed and the main active material is lead oxide and lead sulfate 3.4 dry-charged plate processed plate in a dry and high charge state 3.5 conventional plate processed plate in a dry and low charge state 3.6 free lead remaining metal lead that cannot be oxidized after the unformed plate is cured 3.7 plate rated capacity 10-hour rate capacity indicated by the plate manufacturer 3.8 primary testing plate plate used for measurement and verification 3.9 auxiliary plate corresponding plate used when measuring the primary testing plate. It forms a conduction current loop with the measured plate to realize capacity discharge measurement of the primary testing plate 3.10 reference electrode an electrode used as a reference when measuring the potential of a positive or negative plate. A battery is constituted by the measured plate and a reference electrode with an accurately known electrode potential value to measure the potential value of a primary testing plate 3.11 Appearance of pasted plates 3.11.1 plate buckling arc deformation of a plate 3.11.2 active material lump lost the active material on the plate separates from the grid, forming penetrating defect 3.11.3 peeling off and bubbling on plate surface layered peeling between active materials, without forming penetrating defect 3.11.4 active material sunken the active material in the plate is locally obviously lower than that on the plate surface 3.11.5 plate frame distorted diagonals of a plate are not equal 3.11.6 active material loosing the binding force between active materials and between the active material and the grid becomes poor 3.12 Appearance of tubular plates 3.12.1 fibrous tubes split somewhere one or more separated place(s) on the surface of fibrous tubes 3.12.2 loosened end of fibrous tube the top of fibrous tube becomes loose 3.12.3 lead paste sticking on the fibrous tubes surface active material is stuck on the outer surface of fibrous tubes 3.12.4 unfilled tube there is no active material between the fibrous tube and the grid framework 3.13 Plate composition 3.13.1 lead dioxide content percentage of the amount of lead dioxide in the positive processed plate against the mass of all active materials 3.13.2 lead oxide content percentage of the amount of lead oxide in the negative processed plate against the mass of all active materials 3.13.3 lead sulfate content percentage of the amount of lead sulfate in the unformed plate against the mass of all dry lead paste 3.13.4 free lead content percentage of the amount of free lead in the unformed plate against the mass of all dry lead paste 3.13.5 iron content percentage of the amount of iron impurity in the plate against the mass of all active materials

Contents of GB/T 23636-2017

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 5 Test conditions 6 Test methods 7 Inspection rules 8 Marking, packaging and storage Annex A (Informative) Combined determination of iron and cadmium - Atomic spectrometry or mass spectrometry