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纽扣电池弹片(波形垫圈)。不锈钢弹片可在充放电过程中使电极叠层保持恒定压力。若无弹片,电极在膨胀和收缩时会失去接触,导致循环数据不可靠。
| 属性 | 规格 |
|---|---|
| 材质 | 不锈钢 |
| 类型 | 波形弹簧 / 锥形垫圈 |
| 规格型号 | CR2032 / CR2025 / CR2016 / CR2430 |
| 功能 | 在循环过程中保持叠层压力 |
| 包装数量 | 100片/包 |
石墨在嵌锂时会膨胀约 10%,而硅基复合材料的膨胀率可超过 30%。随着电极的“呼吸”,刚性叠层会在电极与隔膜界面处产生间隙。弹片能吸收这种位移并保持恒定的接触压力;这就是为何未安装弹片的电池在活性材料实际降解之前,就会出现容量波动和阻抗上升的原因。
标准的 CR2032 组装顺序(从负极壳向上)为:负极壳、弹片(波形垫圈)、垫片、锂片或负极片、隔膜、电解液、正极片、正极壳。弹片确保了电极在循环过程中“呼吸”时叠层始终处于恒定的压缩状态;否则,接触电阻会升高并导致结果离散。
将弹片放置在负极壳内侧,垫片下方。确保同一批次测试的安装方向和封口压力保持一致;弹片装反会改变叠层高度,从而导致测试结果偏差。
请联系我们获取定价、包装规格及当前货期。可应要求提供安全数据表(SDS)及特定批次的分析证书(CoA)。

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