弧形聚合物電池
電池特點(diǎn):超厚,疊片工藝,穩(wěn)定, 高倍率
容量480mAh
最大放電電流:1C, 脈沖:5C
用于跟綜器, 數(shù)量不詳
客戶訴求:
大容量, 性能穩(wěn)定
解決方案:
容量采用純鈷, 保證在此尺寸下最大容量;
性能穩(wěn)定,
因?yàn)殡姵睾穸瘸? 有6.5毫米, 以前供應(yīng)商采取卷繞結(jié)構(gòu), 極片極易掉粉, 引起微短路, 導(dǎo)致掉電, K值不佳.
故此, 基安比工程師采用疊片結(jié)構(gòu), 解決卷繞在電池成形后, 對電池進(jìn)行彎曲所產(chǎn)生極片掉粉的弊病.
(此疊片機(jī)可制作任何形狀電池)成品電池達(dá)到客戶要求:
NO
序號
Item
項(xiàng)目
Test Method
測試方法
Criterion
性能標(biāo)準(zhǔn)
1
Visual inspection
外觀
visual inspection
目測
Not allowing any visual defects which will affect the electronic characteristics, such as leakage and damage.
不允許有影響電芯性能的外觀缺陷,諸如泄漏、損壞等
2
Battery Dimension
電池尺寸
Digital Calipers
數(shù)顯卡尺
Length長度:65.8mm Max
Width寬度:15.0mm Max
Thickness厚度:6.5mm Max
3
Initial Impedance
初始內(nèi)阻
Internal resistance measured at AC 1KHz after 50-60% charge
半電狀態(tài)下,測量其AC 1KHz下的交流阻抗
≤250mΩ
4
Rated Capacity
初始放電容量
The capacity means the discharge capacity of the cell, which is measured with discharge current of 0.2C with 3.0V cut-off voltage after the standard charge.
該容量是指標(biāo)準(zhǔn)充電后,0.2C放電至3.0V截止電壓所放出的容量。
≥480mAh
5
循環(huán)壽命
Test condition:
Charge:0.2C to 4.2V
Discharge:0.2C to 3.0V
When the discharge capacity reduced to 70% of rated
capacity, Stop testing
測試條件:
充電:0.2C充電到4.2V
放電:0.2C放電到3.0V
當(dāng)放電容量降至額定容量的70%時(shí),停止測試。
The cycle times is not less than 300
循環(huán)次數(shù)不小于300 次
6
高溫放電容量
A charged battery is placed in an oven for 2 hours at 80oC±2oC, then discharged at a 0.2C current to the termination voltage.
在80℃±2℃條件下,將標(biāo)準(zhǔn)充電后的電芯放入高溫箱中2h后,再以0.2C電流放電至終止電壓。
Discharge 90 percent of the
original capacity.
可放出初始容量的90%
7
Low Temperature
低溫性能
A charged battery is placed in a thermal chamber for 4 hours at -10oC±2oC; then discharged at 0.2C to the termination voltage.
在-10℃±2℃條件下,將標(biāo)準(zhǔn)充電后的電芯放入低溫箱中4h后,再以0.2C電流放電至終止電壓。
Discharge 60 percent of the
original capacity.
可放出初始容量的60%(-10℃)以上
8
Electricity maintenance
荷電保持
After the standard charging, storied the cells under the condition as 20±5 oC for 30days, then measured the capacity with 0.2C till 3.0V
標(biāo)準(zhǔn)充電后,在20±5 oC條件下貯存30天,再以0.2C放電至3.0V所放出的容量。
Remaining capacity≥ 85%
剩余容量≥85%