Developing high capacity yet stable cathodes is key to advancing Li-ion battery technologies. Now, a new metal oxide cathode that is rich in Li with a gradient in Li concentration is shown to be stable to O2 release leading to long cycle life and high capacity.

中文翻译：

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富锂阴极的Li梯度

开发高容量但稳定的阴极是推进锂离子电池技术的关键。现在，已显示出一种新的金属氧化物阴极，该阴极富含Li，且Li浓度呈梯度变化，可稳定地释放O2，从而延长了循环寿命并提高了容量。