UN Test Data (Model:3UR18650-2-T0638)
1.Test Item:
Thermal Test (T2)
P.4/10
2.Test Purpose:
This test assesses cell and battery seal integrity and internal electrical connections. The test
is conducted using rapid and extreme temperature changes.
3.Test Procedure:
Test cells and batteries are to be stored for at least six hours at a test temperature equal to 75±2
℃
, followed
by storage for at least six hours at
a test temperature equal to -40±2
℃
.The maximum time internal between
test temperature extremes is 30 minutes.This procedure is to be repeated 10 times, after which all test cells
and batteries are to be stored for 24 hours at ambient temperature (20 ±5
℃
). For large cells and batteries the
duration of exposure to the test temperature extremes should be at least 12 hours.
SANYO Internal Procedure:
As above.
4.Test Requirements:
No mass loss(less than 0.1%),no leakage,no venting,no disassembly,no rupture and no fire,and the voltage
retention is not less than 90%.
The requirement relating to voltage is not applicable to test batteries at fully discharged states.
5.Test Date:
2010/1/8-2010/1/14
6.Test Data
Before test After test
Before test After test
1
327.78
327.57
0.064
12.94
12.73
98.4
0
PASS
2
328.69
328.50
0.058
12.96
12.70
98.0
0
PASS
3
328.46
328.28
0.055
12.97
12.75
98.3
0
PASS
4
328.42
328.24
0.055
12.95
12.74
98.4
0
PASS
5
327.42
327.22
0.061
0
PASS
6
327.99
328.10
0.034
0
PASS
7
328.10
327.92
0.055
0
PASS
8
328.26
328.08
0.055
0
PASS
9
328.56
328.41
0.046
12.97
12.77
98.5
0
PASS
10
328.67
328.49
0.055
12.96
12.79
98.7
0
PASS
11
327.32
327.35
0.009
12.97
12.79
98.6
0
PASS
12
328.02
327.89
0.040
12.97
12.80
98.7
0
PASS
13
327.37
327.17
0.061
0
PASS
14
328.02
327.83
0.058
0
PASS
15
328.65
328.67
0.006
0
PASS
16
328.36
328.18
0.055
0
PASS
Notes: L-Leakage, V-Venting, D-Disassembly, R-Rupture, F-Fire,
0-No leakage, no venting, no disassembly, no rupture & no fire
Other
event
Result Judgement
At first
cycle,in
fully
charged
states
PASS
At first
cycle,in
fully
discharged
states
After 50
cycles
ending in
fully
charged
states
After 50
cycles
ending in
fully
discharged
states
Battery No.
Mass(g)
Mass loss
(%)
(=<0.1%)
Voltage(V)
Voltage
Retention(
%)(=>90%)
