18650电池是锂离子,属于一种标品民用电池,是现阶段移动电源、笔记本等常用电芯之一,常见形态是直径18mm,长度65mm的圆柱钢壳的电芯。市面上的锂电池最为常见的是钢壳圆柱封装方式,此类在笔记本、强光手电筒领域的应用最广,如此封装的好处在于规格统一,方便自动化技术、规模化生产;此外还有Prismatic(方形)软包封装,也就是我们常说的软包锂电池,常用于手机平板电脑,这类封装最直观的好处是轻薄,便于控制商品的形状和大小。
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