EVE 3.2V105AH prismatic cell

Nominal Technical Parameter

No.	Item		Parameter	Remark
1	Nominal capacity		105Ah	(25±2)℃, Standard charge/discharge.
2	Nominal voltage		3.2V
3	AC Impedance resistance (1KHz)		≤0.5mΩ
4	Standard charge/discharge	Current of charge/discharge	0.5C/0.5C	(25±2)℃
		Cut-off voltage of charge/discharge	3.65V/2.5V
5	Maximum current of charge/discharge	Constant charge/discharge	1C/1C	Refer to constant/pulse charge or discharge MAP
		Pulse charge/discharge (30s)	1C/3C
6	Recommend SOC window		10%～90%	N.A.
7	Charge temperature		0℃～55℃	Refer to constant/pulse charge or discharge MAP
8	Discharge temperature		-20℃～55℃
9	Storage temperature	1 month	-20℃～45℃	N.A.
		1 year	0℃～35℃
10	Storage humidity		＜95%

11	Self-discharge rate per month		≤3%/per month	(25±2)℃，30%～50%SOC storage
12	Size	Width	130.3±0.3mm	Refer to appendix 1
13		Thickness (30%-40%SOC)	36.7±0.5mm
14		Height (total)	200.5±0.5mm
15		Height (subject)	195.5±0.5mm
16		Tabs distance	67.0±1.0mm
17	Weight		1980±100g

Test Environment 

Temperature：(25±2)°C Relative humidity：15%～90%

Atmospheric pressure：86KPa～106KPa

Standard Charge

At (25±2)℃, the cell is charged by a constant current of 0.5C (A) to the cut-off voltage 3.65V, then kept at this voltage until the current is less than 0.05C (A).

Standard Discharge

the cut-off voltage 2.5V.

Electrical Performance

No.	Item	Requirements	Measuring Procedure
1	Rate discharge ability at 25℃	Discharge capacity / Nominal capacity×100% A) 0.5C(A)≥100% B) 1.0C(A) ≥100%	After standard charged, the cell undergo a rest for 1h, then is discharged by current 0.5C(A)、1.0C(A) respectively to cut-off voltage 2.5V. This test is allowed to be repeated for 3 times if the discharge capacity fails to meet the technical requirements.
2	Discharge ability at different temperature	Discharge capacity / Nominal capacity×100% A) 55℃ ≥95% B) -20℃ ≥70%	A) After standard charged, the cell undergo a rest for 5h at (55±2 )℃, then is discharged by current 1.0C(A) to cut-off voltage 2.5V; B) After standard charged, the cell undergo a rest for 24h at (-20±2)℃, then is discharged by current 1.0C(A) to cut-off voltage 2.0V.
3	The capacity retention and recovery at 25℃	Capacity Retention≥95％ Capacity Recovery≥97％	After standard charged，the cell undergo a rest for 28 days, then is discharged by current 1.0C(A) to cut-off voltage 2.5V. The discharge capacity is capacity retention. After standard charged again，the cell undergo 30min’s rest ， then is discharged by current 1.0C(A) to cut-off voltage 2.5V. The discharge capacity is capacity recovery.
4	Cycle life at 25℃	≥3500 cycle @1C/1C	At (25±2)℃, 300kgf clamp force: the cell is charged by current 1.0C (A) to 3.65V, then kept at this voltage until the current is less than 0.05 C(A), followed by 30min rest, subsequently the cell is discharged by current 1.0C (A) to 2.5V . Cycle continues until the capacity decays to 80% of the nominal capacity
5	End-of-life management	Discharge capacity / Nominal capacity <70%	The cell shall be stopped using when the life limit is exceeded.

Safety Performance

No.	Item	Requirements	Measuring Procedure
1	Overdischarge	No fire、explosion、electrolyte leakage	Reference: GB/T 31485-2015 《 safety requirements and test methods for power batteries for electric vehicles》
2	Overcharge	No fire、explosion
3	Shortcircuit	No fire、explosion
4	Dropping	No fire、explosion、electrolyte leakage
5	Heating	No fire、explosion
6	Crushing	No fire、explosion
7	Prisking	No fire、explosion
8	Seawater immersion	No fire、explosion
9	Temperature cycle	No fire、explosion、electrolyte leakage
10	Low pressure	No fire、explosion、electrolyte leakage

Transportation

The cells should be packed into boxes under the charge of 30% ~ 50%SOC. During the transportation, they should be protected from severe vibration, shock , extrusion, sun or rain.

Storage

Cells should be stored (more than 1 month) indoor with a dry and clean environment at

0 ℃~35 ℃, and charged and discharged every 6 months. Keep the last charge under 30%～ 50%SOC.

Attentions

 

4、Do not mix up with cells from different models or manufacturers.

5、Do not use external force to make the cell fall, impact, puncture, do not disassemble the cell or change the external structure.

6、Please keep the cell’s charge under 30% ~ 50%SOC, and avoid direct sunlight or high temperature and humidity environment when the battery is not used for a long time,

7、Please wear protective devices such as rubber gloves when operating the battery.

8、Please immediately stop using if there have leakage, smoking or damage with cell , and contact our company to deal with.

Two-dimensional Diagram

Electrical Performance Diagram

Rate discharge curve at 25℃

Discharge curves at different temperature