弧形聚合物电池

2020-01-20 17:13:44 曾路 26

电池特点:超厚,叠片工艺,稳定, 高倍率

容量480mAh

最大放电电流:1C, 脉冲:5C

用于跟综器, 数量不详


客户诉求: 

大容量, 性能稳定


解决方案:

  1. 容量采用纯钴, 保证在此尺寸下最大容量;

  2. 性能稳定,

 因为电池厚度超厚, 有6.5毫米, 以前供应商采取卷绕结构, 极片极易掉粉, 引起微短路, 导致掉电, K值不佳. 

图片关键词

  1. 故此, 基安比工程师采用叠片结构, 解决卷绕在电池成形后, 对电池进行弯曲所产生极片掉粉的弊病. 


    (此叠片机可制作任何形状电池)

    成品电池达到客户要求:

    图片关键词

  2. NO

    序号

    Item

    项目

    Test Method

    测试方法

    Criterion

    性能标准

    1

    Visual inspection

    外观

    visual inspection

    目测

    Not allowing any visual defects which will affect the electronic characteristics, such as leakage and damage.

    不允许有影响电芯性能的外观缺陷,诸如泄漏、损坏等

    2

    Battery Dimension

    电池尺寸

    Digital Calipers

    数显卡尺

    Length长度:65.8mm Max

    Width宽度:15.0mm Max

    Thickness厚度:6.5mm Max

    3

    Initial Impedance

    初始内阻

    Internal resistance measured at AC 1KHz after 50-60% charge

    半电状态下,测量其AC 1KHz下的交流阻抗

    250mΩ

    4

    Rated Capacity

    初始放电容量

    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.

    该容量是指标准充电后,0.2C放电至3.0V截止电压所放出的容量。

    480mAh

    5

    Cycle Life

    循环寿命

    Test condition

    Charge0.2C to 4.2V 

    Discharge0.2C to 3.0V 

    When the discharge capacity reduced to 70% of rated

    capacity, Stop testing

    测试条件:

    充电:0.2C充电到4.2V

    放电:0.2C放电到3.0V

    当放电容量降至额定容量的70%时,停止测试。

    The cycle times is not less than 300

    循环次数不小于300

    6

    High Temperature

    高温放电容量

    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.

    80℃±2℃条件下,将标准充电后的电芯放入高温箱中2h后,再以0.2C电流放电至终止电压。

    Discharge 90 percent of the

    original capacity.

    可放出初始容量的90%

    7

    Low Temperature

    低温性能

    A charged battery is placed in a thermal chamber for 4 hours at -10ºC±2ºC; then discharged at 0.2C to the termination voltage.

    -10℃±2℃条件下,将标准充电后的电芯放入低温箱中4h后,再以0.2C电流放电至终止电压。

    Discharge 60 percent of the

    original capacity.

    可放出初始容量的60%-10℃)以上

    8

     

     

    Electricity maintenance

    荷电保持

    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

    标准充电后,在20±5 ºC条件下贮存30天,再以0.2C放电至3.0V所放出的容量。

     

     

    Remaining capacity 85%

    剩余容量≥85%

     


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