Improved Electrochemical Performance of LiFePO4@N-Doped Carbon Nanocomposites Using Polybenzoxazine as Nitrogen and Carbon Sources

• DOI: 10.1021/acsami.6b10594
• Publication Date: 2016-09-23T14:38:02Z
• Authors: Ping Wang; Geng Zhang; Zhichen Li; Wangjian Sheng; Yichi Zhang; Jiangjiang Gu; Xinsheng Zheng; Feifei Cao
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Polybenzoxazine is used as a novel carbon and nitrogen source for coating LiFePO4 to obtain LiFePO4@nitrogen-doped carbon (LFP@NC) nanocomposites. The nitrogen-doped graphene-like carbon that is in situ coated on nanometer-sized LiFePO4 particles can effectively enhance the electrical conductivity and provide fast Li+ transport paths. When used as a cathode material for lithium-ion batteries, the LFP@NC nanocomposite (88.4 wt % of LiFePO4) exhibits a favorable rate performance and stable cycling performance.