Synthesis and Electrochemical Performance of Cobalt-Doped KMnF3 as Cathode Materials for Potassium Ion Batteries

2019 ◽  
Vol 166 (10) ◽  
pp. A1819-A1826 ◽  
Author(s):  
Shuya Wang ◽  
Bin Cui ◽  
Quanchao Zhuang ◽  
Yueli Shi ◽  
Hong Zheng
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xing Shen ◽  
Quan Zhou ◽  
Miao Han ◽  
Xingguo Qi ◽  
Bo Li ◽  
...  

AbstractNa-ion batteries have been considered promising candidates for stationary energy storage. However, their wide application is hindered by issues such as high cost and insufficient electrochemical performance, particularly for cathode materials. Here, we report a solvent-free mechanochemical protocol for the in-situ fabrication of sodium vanadium fluorophosphates. Benefiting from the nano-crystallization features and extra Na-storage sites achieved in the synthesis process, the as-prepared carbon-coated Na3(VOPO4)2F nanocomposite exhibits capacity of 142 mAh g−1 at 0.1C, higher than its theoretical capacity (130 mAh g−1). Moreover, a scaled synthesis with 2 kg of product was conducted and 26650-prototype cells were demonstrated to proof the electrochemical performance. We expect our findings to mark an important step in the industrial application of sodium vanadium fluorophosphates for Na-ion batteries.


RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44611-44623
Author(s):  
Xudong Zhao ◽  
Dan Zhou ◽  
Mingyang Chen ◽  
Jiaqi Yang ◽  
Li-Zhen Fan

A robust CoP@CNFC with enhanced electrochemical performance was synthesized via chemical bonding and demonstrates a promising potential toward an efficient K-storage.


Nanoscale ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 5965-5984
Author(s):  
Fei Yuan ◽  
Wenxin Zhang ◽  
Di Zhang ◽  
Qiujun Wang ◽  
Zhaojin Li ◽  
...  

In this review, we discussed the electrochemical performance of various binder-free anodes starting from preparation methods. Also, some challenges and perspectives in binder-free electrodes for PIBs are analyzed.


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