Provided are an electrolytic copper foil, an electrode comprising the same, and a lithium ion battery comprising the same. The electrolytic copper foil has a drum side and a deposited side opposing to the drum side, wherein a nanoindentation hardness of the drum side is equal to or larger than 0.5 GPa and equal to or smaller than 3.5 GPa; and a lightness of the drum side is equal to or larger than 25 and equal to or smaller than 75.
本文提供了一种电解
铜箔、由其组成的电极以及由其组成的
锂离子电池。电解
铜箔具有鼓面和与鼓面相对的沉积面,其中鼓面的纳米压痕硬度等于或大于 0.5 GPa 且等于或小于 3.5 GPa;鼓面的轻度等于或大于 25 且等于或小于 75。