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Co-free Ni-rich layered cathode with long-term cycling stability
Nature Energy ( IF 49.7 ) Pub Date : 2022-09-14 , DOI: 10.1038/s41560-022-01116-4
Nature Energy ( IF 49.7 ) Pub Date : 2022-09-14 , DOI: 10.1038/s41560-022-01116-4
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Introducing Mo into a Ni-rich layered cathode enables a Co-free Li-ion battery to cycle stably at 4.4 V, retaining 86% of its initial capacity after 1,000 cycles. The grain size refinement engendered by Mo increases the resistance to fracture by deflecting cracks while providing fast diffusion paths for Li ions.
中文翻译:
具有长期循环稳定性的无钴富镍层状正极
将 Mo 引入富镍层状正极可使无钴锂离子电池在 4.4 V 下稳定循环,在 1,000 次循环后保持其初始容量的 86%。Mo 引起的晶粒细化通过偏转裂纹增加了抗断裂性,同时为锂离子提供了快速扩散路径。
更新日期:2022-09-15
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
具有长期循环稳定性的无钴富镍层状正极
将 Mo 引入富镍层状正极可使无钴锂离子电池在 4.4 V 下稳定循环,在 1,000 次循环后保持其初始容量的 86%。Mo 引起的晶粒细化通过偏转裂纹增加了抗断裂性,同时为锂离子提供了快速扩散路径。