Specification No.
Edition No.
Q/WAPL785060-1011
1.0
Polymer Lithium-ion Battery
Product Specification
Model：785060 2500mAh
Hunan Sounddon New Energy Co., Ltd
Address:No.98, Fuzhou Road,Jinhua Demonstration Area,Xiangtan City,Hunan Province,China.
Tel: (86) 731 - 5856 7126
Fax: (86) 731 - 5823 6346
E-mail:linda.ding@soundnewenergy.com
Prepared by：Sunping
Checked by：Zhu Qi
Approve by: Jin Gang
All
10
pages
Polymer Lithium-ion battery
1、 Scope
Doc. No.
Edition No.
Q/WAPL785060-1011
1.0
2/10
Product Specification
This product specification describes polymer lithium-ion battery. Please using the test
methods that recommend in this specification. If you have any opinions or advices about the test
items and methods, please contact us. Please read the cautions recommended in the specifications
first, take the credibility measure of the cell’s using.
If the cells should be using at the environment that not preferred in this document, please
connect with our first and get our authorization. For the reason of stable performance and better
safety, battery pack with more than 2 cells connected in serial way should be charged with a
balance charger.
It is claimed that we should have no any responsibility with the contingency and loss due to
the cells’ wrong usage (not preferred in the product specification).
2、 Product Type, Model and Dimension
2.1 Type：Polymer lithium-ion battery
2.2 Model：785060(Cell adding Ni Tabs)
2.3 Cell Dimension(Max, Thickness×Width×Length，mm
3
)：7.8×50×60
Pack Dimension(Max, Thickness
×Width×Length，mm
3
)：7.9*50.5*60.5(with pcm)
3、 Specification
Item
Nominal Capacity
Nominal Voltage
Standard Charge Current
Max Charge Current
Charge cut-off Voltage
Standard Discharge Current
Discharge cut-off Voltage
Cell Voltage
Impedance
Weight
≤
1month
Storage
≤
3month
temperature
≤
6month
Storage humidity
Specifications
2500mAh
3.75V
0.2 C
5
A
1C
5
A
4.2V
0.5C
5
A
2.75V
3.7-3.9V
≤
35m
Ω
Approx:46g
-10
½
45
℃
0
½
30
℃
20±5
℃
65±20% RH
Remark
0.2C
5
A discharge，25
℃
Average Voltage at 0.2C
5
A discharge
Working temperature：0
½
40
℃
Working temperature：0
½
40
℃
CC/CV
Working temperature：25
℃
When leave factory
AC 1KHz after 50% charge,25℃
Best 20±5
℃
for long-time
storage
4. General Performance
Definition of Standard charging method
：
20±5
℃，
At
charging the cell initially with constant
current 0.2C
5
A till voltage 4.2V, then with constant voltage4.2 till current declines to 0.05C
5
A.
Polymer Lithium-ion battery
Product Specification
Doc. No.
Edition No.
Q/WAPL785060-1011
1.0
3/10
Item
After
4.1
0.2C Capacity
standard
at
discharging
After
4.2
1C Capacity
time.
0.2C
5
A
Test Methods
charging,
to
laying
voltage
laying
the
battery
0.5h,
2.75V,
the
recording
0.5h,
Performance
then
the
≥
300min
then
≥
54min
discharging time.
standard
charging,
battery
discharging at 1C
5
A to voltage 2.75V, recording the discharging
Constant current 0.5C
5
A charge to 4.2V, then constant voltage
4.3
Cycle Life
charge to current declines to 0.05C stay 5min
，constant
5
A,
current 0.5C
5
A discharge to 2.75V，stay 5min. Repeat above
steps till continuously discharging time less than 36min.
Capability of
4.4
keeping
electricity
20±5
℃,
After standard charging, laying the battery 28days,
discharging
at
0.2C
5
A
to
voltage2.75V,
recording
the
≥
240min
≥
400times
discharging time.
5. Environment Performance
Item
5.1
High
temperature
Low
temperature
Constant
5.3
humidity and
temperature
5.4
Temperature
shock
Test Methods
After standard charging, laying the battery 4h at 60
℃
,
then discharging at 0.2C
5
A to voltage 2.75V, recording the
discharging time.
After standard charging, laying the battery 4h at -10
℃
,
then discharging at 0.2C
5
A to voltage 2.75V, recording the
discharging time.
After standard charging, laying the battery 48h at 40±
2
℃,
RH
93±2%. Recording 0.2C
5
A discharging time
After standard charging, battery stored at -20
℃
for 2
hours, then stored at 50
℃
for 2 hours. Repeat 10 times.
No distortion
No electrolytes leakage
≥
270 min
≥
210min
≥
270min
Performance
5.2
No electrolytes leakage
6.
Mechanical Performance
Polymer Lithium-ion battery
Product Specification
Item
Test Methods
Doc. No.
Edition No.
Q/WAPL-785060-1011
1.0
4/10
Performance
6.1
Vibration
After standard charging, put battery on the vibration
No influence to batteries'
table. 30 min experiment from X,Y ,Z axis. Scan rate: 1
electrical performance and
oct/min; Frequency 10-30Hz, Swing 0.38mm; Frequency
appearance.
30-55Hz, Swing 0.19mm.
No influence to batteries'
acceleration:
electrical performance and
100m/s
2
; collision times per minutes: 40~80; frequency
appearance.
keeping time 16ms; all collision times 1000±10.
table
about
X,
Y,
Z
axis.
Max
frequency
Random drop the battery from 10m height onto concrete
one times.
No explosion or fire
After vibration test, batteries were laying on the vibration
6.2
Collision
6.3
Drop
7. Safety Test
Test conditions：The
following tests must be measured at flowing air and safety protection
conditions. All batteries must standard charge and lay 24h.
Item
Test Methods
At 20 5
℃
, charging batteries with constant current
±
7.1
Over charge
3C
5
A to voltage5V, then with constant voltage5V till current
decline to 0. Stop test till batteries’ temperature 10
℃
lower
than max temperature.
7.2
7.3
7.4
Over discharge
Short-circuit
Extrusion
At
20± 5
℃
,
discharge
battery
with
0.2C
5
A
continuously 12.5h.
At 20±5
℃
, connect batteries’ anode and cathode by
wire which impedance less than
50mΩ
, keep
6h.
At 20±5
℃
, put the battery in two parallel steal broad,
add pressure
13kN.
No explosion or fire
No explosion or fire
No explosion or fire
No explosion or fire
Performance
Put the battery in the oven. The temperature of the oven
7.5
Thermal shock
is to be raised at 5±1
℃
per minute to a temperature of 130
±2℃
and remains 60 minutes.
No explosion or fire
8. Cautions
8.1
Cautions of batteries’ operation
Polymer Lithium-ion battery
Product Specification
Doc. No.
Edition No.
Q/WAPL785060-1011
1.0
5/10
The batteries must be careful of proceed the operation for its soft package.
8.1.1 Aluminum packing materials
The aluminum packing material was easily damaged by the sharp edge part, such as
nickel-tabs.
⑴
forbid to use the sharp part touching the battery;
⑵
should cleaning working condition, avoiding the sharp edge part existence;
⑶
forbid to pierce the battery with nail and other sharp items;
⑷
the battery was forbidden with metal, such as necklace, hairpin etc in transportation
and storage.
8.1.2 Sealed edge
Sealing edge is very easily damaged and don’t bend it.
The Al interlayer of package has good electric performance. It’s forbidden to
connect with exterior component for preventing short-circuits.
edge
Folding edge
Sealed edge
Package material
Anode Ni-tab
Transforming Ni-tab
Cathode Al-tab
Fig.1. Exterior schematic of polymer lithium-ion cells
8.1.3 Folding edge
The folding edge is formed in batteries’ processes and passed all hermetic tests,
don’t open or deform it. The Al interlayer of package has good electric performance. It’s
forbidden to connect with exterior component for preventing short-circuits.
A
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