电池认证最新CTL协议-DSH 2182（第二次充电过程充电截止电流）

2022年8月29日，IECEE官网发布关于电池CTL决议DSH 2182，涉及标准IEC 62133-2:2017，IEC 62133-2:2017/AMD1:2021.

内容如下：

Question问题

The second charging procedure for test purposes, Clause 7.1.2, requires a charging cutoff current of 0.05ItA. When cell manufacturer defines a different charging cutoff current, which one shall be used?

用于测试目的的第二个充电程序，第 7.1.2 章节，要求充电截止电流为0.05ItA。当电池制造商定义不同的充电截止电流时，应使用哪一个？

Decision决定

0.05ItA shall be used.

However, on request of the manufacturer, a separate set of tests with samples prepared with a manufacturer-defined cutoff current can be conducted for reference purposes. The upper limit charging voltage of cell shall not be exceeded while charging with the manufacturer-defined cutoff current.

应使用 0.05ItA。

但是，根据制造商的要求，可以对使用制造商定义的截止电流制备的样品进行一组单独的测试，以供参考。 以制造商定义的截止电流充电时，不得超过电池的充电上限电压。

Explanatory notes  解释性说明

The charging cutoff current carries an implication on the state-of-charge of the samples and the probability of test compliance.

Therefore the value defined in the standard, 0.05ItA, shall be strictly followed. On the other hand, considering that cell manufacturers design their products with a possibly different charging cutoff current to reflect intended usage conditions, it is allowable to conduct a separate set of tests with that charging cutoff current in addition to 0.05ItA.

Testing with this different charging cutoff current is for reference purpose only. In accordance with Clause 7.1.2, the upper limit charging voltage of the cell shall not be exceeded, regardless of the value of charging cutoff current.

充电截止电流对样品的充电状态和测试合格的可能性有影响。因此，应严格遵循标准中定义的值0.05ItA。另一方面，考虑到电池制造商根据预期的使用条件设计其产品可能具有不同的充电截止电流，因此允许单独设置 该充电截止电流除 0.05ItA外的测试次数。以这种不同的充电截止电流进行测试仅供参考。

根据第 7.1.2 章节，无论充电截止电流值如何，均不得超过电芯的充电上限电压。