Development of surface functionalized ZnO-doped LiFePO₄/C composites as alternative cathode material for lithium ion batteries

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• 作者：Rakesh Saroha^a ; Amrish K. Panwar^a ; ^{amrish.phy@dce.edu} ; ^{panwaramar@gmail.com} ; Yogesh Sharma^b ; Pawan K. Tyagi^a ; Sudipto Ghosh^c
• 关键词：Olivine-cathode ; ZnO-doping ; Charge separation ; Surface force gradient ; Ragone plot
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：394
• 期：Complete
• 页码：25-36
• 全文大小：5782 K
• 卷排序：394

文摘

Pristine LFP and ZnO-doped LFP/C samples have been synthesized using sol-gel assisted ball milling route. Electronic conductivity of pristine LFP increases to 102-103 orders of magnitude for ZnO doped LFP/C samples. AFM results indicate the presence of more volumetric charge density at the surface for ZnO-doped LFP/C sample. LFPZ2.5 shows best cycling and rate performances among all the prepared samples. Lithium ion diffusion coefficient increases significantly.