二次电池、二次电池用负极极片的制备方法和用电装置
本申请公开了二次电池、二次电池用负极极片的制备方法和用电装置。所述二次电池包括负极极片,所述负极极片包括负极集流体和位于所述负极集流体至少一侧的负极活性材料层,基于X射线光电子能谱分析对所述负极活性材料层的测试结果,氮元素的原子百分含量≤1%。由此,该二次电池具有较高的首效和较长的寿命。
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