کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6469614 | 1423975 | 2017 | 5 صفحه PDF | دانلود رایگان |
- A novel layered ternary material, K0.67Ni0.17Co0.17Mn0.66O2 has been synthesized.
- K0.67Ni0.17Co0.17Mn0.66O2 was introduced as a cathode for potassium ion batteries.
- Highly reversible K+ intercalation/deintercalation is demonstrated.
- A reversible discharge capacity of 76.5Â mAh/g at 20Â mA/g was obtained.
A novel layered ternary material K0.67Ni0.17Co0.17Mn0.66O2 has been fabricated via a co-precipitation assisted solid-phase method and further evaluated as a cathode for potassium-ion batteries for the first time. Highly reversible K+ intercalation/deintercalation is demonstrated in this material. It delivers a reversible capacity of 76.5Â mAh/g with average voltage of 3.1Â V and shows good cycling performance with capacity retention of 87% after 100Â cycles at 20Â mA/g. This work may give a new insight into developing cathode materials for potassium-ion batteries.
78
Journal: Electrochemistry Communications - Volume 82, September 2017, Pages 150-154