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GB 31241-2014 safety requirements for lithium ion batteries and batteries for po

Date of issue:2020-05-13

1、 Editorial modification

Serial number

Standard article number

Content

1

4.7.5

The names of individual test contents in Table 1 and table 2 are modified, corresponding to the main text.
7 "battery environmental test" changed to "battery environmental safety test"
8 "battery pack environmental test" changed to "battery pack environmental safety test"
8.7 replace "high temperature" with "high temperature use"
9.6 replace "short circuit" with "external short circuit"

9.8 replace "static discharge" with "electrostatic discharge"

2

8.8

"See 5.3.2 for warning instructions." Change to "see 5.3 for requirements of warning instructions."

3

9.8

Move "electrostatic discharge" to Chapter 10, number "10.8 electrostatic discharge", and modify corresponding contents of Table 2 and table 3 in 4.7.5.

4

10.4

"Under voltage discharge, the discharge current is the standard discharge current (IDR)" is modified to "when under voltage discharge, the discharge current is the recommended discharge current (IDR)"

5

10.7

Add: "note: since the charging limit voltage of batteries with series series series greater than 6 is generally higher than 28V, this test may not be conducted for such batteries."

6

Appendix E.2

In the paragraph, 0.450 less unit mm is changed to 0.450 mm.

2、 Technical modification

Serial number

Standard article number

Content

1

4.3

Increase speed tolerance "f) speed: ± 1%".

2

7.2a)、c

Change "75 ℃± 2 ℃" to "72 ℃± 2 ℃"

3

7.7

7.7 add a paragraph under the heading "this article does not apply to batteries in flexible packaging." At the same time, delete the "soft package battery" in the text of the original article

4

9.3

Add a paragraph under the first paragraph: "for the battery pack not designed with over-current charging protection, 1.5 times of the maximum charging current (1.5 ICM) is used to replace 1.5 times of the over-current charging protection current (1.5 ICP).


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