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对高比能锂硫电池负极材料进行了TiO2层表面改性处理,研究了改性层层数、热处理温度和TiO2溶胶质量分数对改性膜层耐腐蚀性能的影响。结果表明,在3种影响因素中,对高比能锂硫电池负极材料耐腐蚀性能影响最大的是热处理温度,其次为TiO2薄膜改性层层数,最后为TiO2溶胶的质量分数。高比能锂硫电池负极材料的最佳改性工艺参数为:膜层层数为3、热处理温度为100℃、TiO2溶胶质量分数为0.5%。
The surface modification of TiO2 layer was carried out on the anode material of high specific energy lithium-sulfur battery. The effects of the number of modified layers, the heat treatment temperature and the mass fraction of TiO2 sol on the corrosion resistance of the modified film were studied. The results show that among the three influencing factors, the heat treatment temperature is the most important factor for the corrosion resistance of the negative electrode material of high specific energy lithium-sulfur battery, followed by the number of modified layers of TiO2 film and finally the mass fraction of TiO2 sol. The optimum modification parameters for the anode material of high specific energy lithium-sulfur battery are as follows: the number of film layers is 3, the heat treatment temperature is 100 ℃ and the mass fraction of TiO2 sol is 0.5%.