Dual-Function Presodiation with Sodium Diphenyl Ketone towards Ultra-stable Hard Carbon Anodes for Sodium-Ion Batteries,Angewandte Chemie International Edition

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Dual-Function Presodiation with Sodium Diphenyl Ketone towards Ultra-stable Hard Carbon Anodes for Sodium-Ion Batteries
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-11-11 , DOI: 10.1002/anie.202214717
Hengyi Fang ₁ , Suning Gao ₁ , Meng Ren ₁ , Yaohui Huang ₁ , Fangyi Cheng _{1,

2} , Jun Chen _{1,

2} , Fujun Li _{1,

2}

Affiliation

Sodium diphenyl ketone is applied as a reducing reagent to compensate irreversible Na uptake at oxygen-containing functional groups and react with defective carbon for quasi-metallic Na to initiate robust SEI. It leads to ICE of 99.2 % and capacity retention of ≈100 % for 700 cycles in the full cells of presodiated hard carbon//Na₃V₂(PO₄)₃.

中文翻译：

与二苯甲酮钠的双功能预沉淀用于钠离子电池的超稳定硬碳阳极

二苯酮钠用作还原剂以补偿含氧官能团不可逆的 Na 吸收，并与有缺陷的碳反应形成准金属 Na 以引发稳健的 SEI。_{在预钠化硬碳//Na 3} V ₂ (PO ₄ ) ₃的全电池中，它导致 99.2% 的 ICE 和 ≈100% 的容量保持 700 个循环。

更新日期：2022-11-11

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