锂电池18650 SPEC

TENTATIVE

4 (8)

LGCRP/BTC Ryu, Duk Hyun

LRB-PS-CY240

2003-07-16 0

LGCRP/BTC Kim, Soo Ryoung

Lithium Ion ICR18650 A3

Initial AC impedance is measured at 1kHz after standard charge.

Initial AC Impedance ≤ 90 m (with PTC)

6.6 Temperature Dependency of Capacity

Cells shall be charged per 6.1 at 23ºC ± 2ºC and discharged per 6.2 at the following temperatures. Relative capacity at each temperature shall meet the following.

Charge Temp.

23ºC

-10 ºC 70 %

Discharge Temperature

0 ºC ºC ºC 90 %

100 %

95 %

6.7 Storage Characteristics

Cells shall be charged per 6.1 and stored in a temperature-controlled environment at 23ºC ± 2ºC for 30 days. After storage, cells shall be discharged per 6.2 to obtain the remaining capacity.

Remaining capacity ≥ 90 % (of minimum capacity in 3.1) 6.8 Cell Voltage (as of shipment)

Voltage range : 3.7 ~ 3.9 V 7.1 Drop Test Test method

Criteria

: Cells charged per 6.1 are dropped onto an wooden floor from 4 feet height for 3 cycles, where each cycle consists of 3 drops, 2 drops from each cell terminal and 1drop from the side of cell can (Total number of drops = 9). After test, cells are discharged per 6.2 and cycled per 6.1 and 6.2 for 3 cycles to obtain recovered capacity.

: No leakage, Capacity recovery rate ≥ 80 %

7.2 Vibration Test

Test method : Cells charged per 6.1 are vibrated for 90 minutes per each of the three mutually

perpendicular axis (x, y, z) with an amplitude of 0.8mm, frequency of 10Hz to 55Hz and sweep of 1Hz change per minute. After test, cells are discharged per 6.2 and cycled per 6.1 and 6.2 for 3 cycles to obtain recovered capacity. : No leakage, Capacity recovery rate ≥ 80 %

Criteria