GB/T 32509-2025 PDF English
GB/T 32509: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB/T 32509-2025 | 275 | Add to Cart | Auto, 9 seconds. | General specification for vanadium flow battery | Valid |
| GB/T 32509-2016 | 145 | Add to Cart | Auto, 9 seconds. | General specification for vanadium flow battery | Valid |
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GB/T 32509-2025: General specification for vanadium flow battery
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT32509-2025GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.220.01 CCS K 82 Replacing GB/T 32509-2016 General specification for vanadium flow battery Issued on: JUNE 30, 2025 Implemented on: JANUARY 01, 2026 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Environmental conditions... 7 5 Technical requirements... 7 6 Test methods... 9 7 Inspection rules... 10 8 Marking and instruction for use... 11 9 Packaging, transportation, storage... 12 General specification for vanadium flow battery1 Scope
This document specifies the conditions of use, technical requirements, inspection rules, marking, instruction for use, packaging, transportation and storage of vanadium flow battery, and describes the corresponding test methods. This document applies to the research, development, production, manufacturing, and testing of vanadium flow battery (hereinafter referred to as "battery").2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 9969, General principles for preparation of instructions for use of industrial products GB/T 29840, Vanadium flow battery - Terminology GB/T 33339-2025, Test method for vanadium flow battery system NB/T 42134, Technological specification of battery management system for vanadium flow battery3 Terms and definitions
For the purposes of this document, the following terms and definitions, as well as those given in GB/T 29840, apply. 3.1 vanadium flow battery; VFB vanadium flow battery system An energy storage device that achieves the interconversion of electrical energy and chemical energy through the electrochemical reaction of vanadium ions in different valence states in the positive and negative electrode electrolytes. Note. A vanadium flow battery is mainly composed of power units (stacks or modules), energy storage units (electrolyte and storage tanks), electrolyte delivery units (pipelines, valves, pumps, heat exchangers, etc.), and battery management systems, but does not include charging and discharging equipment. [Source. GB/T 29840-2013, 2.1] 3.2 rated charging capacity The charging capacity that a battery can achieve under specified test conditions and methods. Note. The unit of rated charging capacity is watt-hour (Wh), kilowatt-hour (kWh), or megawatt-hour (MWh). 3.3 rated discharging capacity The discharging capacity that a battery can achieve under specified test conditions and methods. Note. The unit of rated discharging capacity is watt-hour (Wh), kilowatt-hour (kWh), or megawatt-hour (MWh). 3.4 rated energy efficiency The ratio of the discharging capacity to the charging capacity of a battery under specified test conditions and methods. Note. Rated energy efficiency is expressed as a percentage (%). 3.5 range coefficient of fuel cell stack The ratio of the difference between the maximum and minimum voltage values of all battery stacks to the average value of the battery under specified test conditions and methods. Note. The range coefficient of fuel cell stack is expressed as a percentage (%).4 Environmental conditions
Environmental conditions shall meet the following requirements. a) Temperature. -30℃ ~ 40℃; b) Relative humidity. 5% ~ 95%; c) Altitude. ≤2 000 m. Note 1.The electrolyte temperature range shall be determined by the manufacturer based on the electrolyte characteristics. Note 2.The scope of use beyond environmental conditions shall be determined through consultation between the manufacturer and the user.5 Technical requirements
5.1 Appearance The appearance shall meet the following requirements. a) The exterior surface shall be clean, with no electrolyte leakage or seepage, no structural damage, and no oxidation or corrosion at electrical contact points; b) The product marking shall be displayed in a prominent external location, as shown in 8.1. 5.2 Electrical properties 5.2.1 Rated energy efficiency The rated energy efficiency of the battery shall meet the following requirements. -- Batteries with a rated power of less than 50 kW shall have a rated energy efficiency of no less than 65%; -- Batteries with a rated power of 50 kW ~ 150 kW shall have a rated energy efficiency of no less than 68%; -- Batteries with a rated power greater than 150 kW shall have a rated energy efficiency of no less than 70%. 5.2.2 Rated charging capacity The charging capacity of the battery shall not be lower than the rated charging capacity specified in the product's nominal specifications. 5.2.3 Rated discharging capacity The rated discharging capacity of the battery shall not be lower than the rated discharging capacity specified in the product's nominal specifications. 5.2.4 Charging overload capacity The charging overload capacity shall meet the following requirements. a) For batteries with a maximum charging time of 100 minutes or more at rated power, the charging time at 1.1 times the rated power shall not be less than 10 minutes, and the charging time at 1.2 times the rated power shall not be less than 1 minute; b) For batteries with a maximum charging time of less than 100 minutes at rated power, the charging time at 1.1 times the rated power shall not be less than 10% of the total charging time, and the charging time at 1.2 times the rated power shall not be less than 1% of the total charging time. 5.2.5 Discharging overload capacity The discharging overload capacity shall meet the following requirements. a) For batteries with a maximum charging time of 100 minutes or more at rated power, the discharging time at 1.1 times the rated power shall not be less than 10 minutes; and the discharging time at 1.2 times the rated power shall not be less than 1 minute. b) For batteries with a maximum discharging time of less than 100 minutes at rated power, the discharging time at 1.1 times the rated power shall not be less than 10% of the total charging time, and the discharging time at 1.2 times the rated power shall not be less than 1% of the total charging time. 5.2.6 High-temperature storage performance Tested in accordance with 6.2.6, the discharging capacity shall not be less than the rated discharging capacity specified in the product's nominal specifications. 5.2.7 Low-temperature storage performance Tested in accordance with 6.2.7, the discharging capacity shall not be less than the rated discharging capacity specified in the product's nominal specifications. 5.2.8 Stack voltage consistency The range coefficient of fuel cell stack shall not exceed 4%. 5.3 Monitoring and protection functions ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
