Structure-controlled synthesis and electrochemical properties of NH₄V₃O₈ as cathode material for Lithium ion batteries

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• 作者：Yayi Cheng ; Jianfeng Huang ; ^{huangjf@sust.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Jiayin Li ; Liyun Cao ; ^{2644245930@qq.com" class="auth_mail" title="E-mail the corresponding author} ; Zhanwei Xu ; Jianpeng Wu ; Shanshan Cao ; Hailing Hu
• 关键词：NH4V3O8 ; Morphology ; Lithium ion battery ; Cathode
• 刊名：Electrochimica Acta
• 出版年：2016
• 出版时间：10 September 2016
• 年：2016
• 卷：212
• 期：Complete
• 页码：217-224
• 全文大小：2705 K

文摘

NH₄V₃O₈ flower, nanobelt, lath and sheet were synthesized using a facile microwave hydrothermal method. The formation mechanism of NH₄V₃O₈ with various structures was proposed. As an cathode in Li-ion battery, the NH₄V₃O₈ nanobelt with one-dimensional structure as well as nanosized morphology, presents excellent cycling stability and enhanced rate capability when comparing with other NH₄V₃O₈ structures. Further study finds that the NH₄V₃O₈ nanobelt could provide high Li ion diffusion, excellent structural stability and good reversibility during the charge/discharge process, indicating a strong connection between the morphology and the electrochemical performance of NH₄V₃O₈ cathode.