数据存储广告

独家解析:特斯拉4680电池结构与工艺设计

电池广告

对18650和21700电池进行CT扫描(不是特斯拉电池),圆柱电池中间高度的横截面如图所示,较重的元素或密度较高的区域吸 收的X射线强度较高,图像显示更亮(灰度值更局)。因此/夕卜壳/极耳(铝;德)/卷芯(镍、锰、钴、铝、铜、碳、锂)以及内核芯可以清晰分辨。沿二维横截面中虚线 的线扫描为如图a , d所示。线的灰度值呈现周期性,代表正极和负极,因此可以计算卷绕圏数。42和52个峰对应于18650和 21700电池的20.8和26.1圏。

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