National Standard of the People’s Republic of China
GB/T 33339-2025
Replaces GB/T 33339-2016
Test method for vanadium flow battery system
全钒液流电池系统测试方法
(English Translation)
Issue date: 2025-06-30 Implementation date: 2026-01-01
Issued by the State Administration for Market Regulation of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test items
5 Test preparation
6 Test conditions
7 Measuring instruments
8 Test methods
9 Test report
Annex A (Informative) Test report
Test method for vanadium flow battery system
1 Scope
This document describes the test method for vanadium flow battery system.
This document is applicable to the research and development, production, manufacturing and testing of vanadium flow battery system (hereinafter referred to as "battery").
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions 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 27418 Guide to the evaluation and expression of uncertainty in measurement
GB/T 29840-2013 Vanadium flow battery - Terminology
GB/T 50063 Code for design of electrical measuring device of power system
NB/T 42134 Technological specification of battery management system for vanadium flow battery
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 29840-2013 and the following apply.
3.1
state of charge (SOC)
ratio of the remaining dischargeable capacity of a vanadium flow battery to its rated discharge capacity
4 Test items
Table 1 gives the test items of the battery.
Table 1 Test items
No. Test item Test method Sequence of tests
1 Appearance 8.1 It shall be carried out prior to the following tests
2 Insulation resistance 8.4 It shall be carried out prior to the following tests
3 Rated energy efficiency 8.2.1 —
4 Rated charging capacity 8.2.2 —
5 Rated discharging capacity 8.2.3 —
6 Charge overload capacity 8.2.4 —
7 Discharge overload capability 8.2.5 —
8 High-temperature storage performance 8.2.6 —
9 Low-temperature storage performance 8.2.7 —
10 Stack voltage conformance 8.2.8 —
11 Monitoring and protection functions 8.3 —
5 Test preparation
5.1 General
The following items shall be included in the test plan:
a) Purpose;
b) Test specifications;
c) Qualification of test personnel;
d) The uncertainty of result shall meet the requirements of GB/T 27418;
e) Requirements for measuring instruments;
f) Estimation of test parameter range;
g) Data acquisition
5.2 Data acquisition and recording
The data acquisition system and data recording equipment shall meet the requirements of acquisition frequency and speed, and their performance shall be superior to those of test equipment.
5.3 Temperature inspection
Before carry out the test, confirm that the temperature of the battery electrolyte meets the test requirements.
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test items
5 Test preparation
6 Test conditions
7 Measuring instruments
8 Test methods
9 Test report
Annex A (Informative) Test report
