PRODUCT SPECIFICATION
CONFIDENTIAL
Description
Date
Rev
Lithium Ion ICR18650 B3 2600mAh
2007-09-14
1
5/8
4.3 Environmental specification.
Item
Condition
Specification
4.3.1
Storage Characteristics
Cells shall be charged per 4.1.1 and stored in a
temperature-controlled environment at 23ºC ±
2ºC for 30 days. After storage, cells shall be
discharged per 4.1.2 to obtain the remaining
capacity.
Capacity remaining rate
≥
90% (C
min
in 2.1)
4.3.2
High Temperature
Storage Test
Cells shall be charged per 4.1.1 and stored in a
temperature-controlled environment at 60ºC for
1 week. After storage, cells shall be discharged
per 4.1.2 and cycled per 4.1.3 for 3 cycles to
obtain recovered capacity
∗
.
No leakage,
Capacity recovery rate
≥
80%
4.3.3
High Temperature and
High Humidity Test
Cells are charged per 4.1.1 and stored at 60ºC
(95% RH) for 168 hours. After test, cells are
discharged per 4.1.2 and cycled per 4.1.3 for 3
cycles to obtain recovered capacity.
No leakage, No rust
Capacity recovery rate
≥
80%
4.3.4
Thermal Shock Test
65ºC (8h)
←
3hrs
→
-20ºC (8h) for 8 cycles
with cells charged per 4.1.1 After test, cells are
discharged per 4.1.2 and cycled per 4.1.3 for 3
cycles to obtain recovered capacity.
No leakage
Capacity recovery
rate
≥
80%
Cells shall be charged per 4.1.1 at 23ºC ± 2ºC
and discharged per 4.1.2 at the following
temperatures.
4.3.5
Temperature
Dependency of
Capacity
Charge Discharge Capacity
-10
℃
60% of C
ini
0
℃
90% of C
ini
23
℃
100% of C
ini
23
℃
60
℃
95% of C
ini
4.4 Mechanical Specification
* Remaining Capacity : After storage, cells shall be discharged with Std. condition(4.1.2) to measure the remaining capacity.
** Recovery Capacity : After storage, cells shall be discharged with fast discharge condition(4.1.3), and then cells shall be charged with std.
charge condition(4.1.1), and then discharged with Std. condition(4.1.2). This charge / discharge cycle shall be repeated three times to measure
the recovery capacity.