The effect of the chain length of the surfactant lipophilic group on the morphology and electrochemical properties of LiFePO4/C composites was studied by the urea-assisted soft template method for the first time.The results shown that the chain length of the lipophilic group played a crucial role in influencing the particles under the actions of urea.At room temperature,the initial discharge specific capacity of LFD-DTAB-urea reached 153.1mAh/g at the rate of 0.1C,the discharge specific capacity remained 123mAh/g after 50 cycles,the capacity retention rate was 84.9%,and the discharge specific capacity reached 79.5mAh/g at 10C.The results provided a reference for the research of other lithium secondary batteries and even new secondary battery electrode materials,and shown that the soft template method had a broad application prospect in the synthesis of nano-materials.
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基金资助
国家自然科学基金(51202179);陕西省科技厅资助项目(2018GY-166、2019TD-019);陕西省教育厅自然科学基金(16JS058、18JS058);西安市科技局资助项目[201805033YD11CG17(7)、2019219914SYS014CG036]
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