SDS

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2019-11-18
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Page 11 of 41 Pages
环
No obvious difference on battery
surface before and after test.
容量保持率≥80%，测试完成后电池
（满电态）相对于测试前（出货态）
厚度变化率≤10%，电池外观相比实验
前无明显差异。
Low
temperature
cycle
at-10
℃
-10℃低温循
环
Under -10
℃
±2
℃
, the battery was charged and
discharged at 0.2c for 20 cycles.
电池在-10℃±2℃的环境下，电池用 0.2C 进行充放电，循环
20 次。
Capacity retention rate ≥70%. After
this test, thickness change rate of
battery between fully- charged state
and shipping state is less than 5%.
No obvious difference on battery
surface before and after test.
容量保持率≥70%，测试完成后电池
（满电态）相对于测试前（出货态）
厚度变化率≤5%，电池外观相比实验
前无明显差异。
Room
temperature
charge
retention
capacity
常温荷电保
持能力
After fully charging in accordance with standard
charging mode, the battery is stored for 28 days under
20±5℃. Then, under 23℃±2℃, it is discharged to 3.0V
at 0.2C. Recording discharge time T1. Then, the battery
was filled in the standard charging mode. Under
23℃±2℃, the battery was discharged from 0.2C to
3.0v. Recording discharge time T2. Checking battery
appearance.
电池按照标准充电模式充满电后，电池在 20±5℃条件下，
开路搁置 28 天；在环境温度为 23℃±2℃下，以 0.2 C5 放
电至 3.0V，记录放电时间 T1；然后再将电池按照标准充电
模式充满，在环境温度为 23℃±2℃下，以 0.2 C5 放电至
3.0V，记录放电时间 T2，检查电池外观.
T1≥4.25h,
T2≥4.5h
No swelling or leakage.
电池不膨胀、不渗漏。
High
temperature
charge
retention
capacity
高温荷电保
持能力
After fully charging in accordance with standard charging
mode, it is stored in the oven under 45
℃
±2
℃
for 7 days.
The battery is removed out to be put aside for 2 hours, then
is discharged at 0.2C5 to the cut-off voltage of 3.0v.
电池按照标准充电模式充满电后，放入 45℃±2℃的烘箱中存
放 7 天；从恒温箱中取出电池恢复 2 小时，然后以 0.2C5 放电
至终止电压 3.0V。
Discharge time ≥4.5h, swelling rate ≤
5%. No swelling or leakage.
放电时间≥4.5h，电池厚度变化率
≦5%，检查电池外观，电池不膨胀、
不渗漏。
Storage
performance
储存性能
Batteries with a production date of ＜3 months were
selected。 With voltage of 3.85~ 3.90v, it is stored for 12
months at a temperature of 20±5℃ and a humidity of
45%~85%, and then is charged in accordance with the
standard mode. The battery was discharged at a current of
Discharge time should be > 4h.
No obvious difference on battery surface
before and after test.
放电时间应＞4h。电池外观相比实
验前无明显差异。