针对电池涂料涂布要求,由苯乙烯磺酸钠、甲氧基聚乙二醇甲基丙烯酸酯等单体共聚合成了磷酸铁锂锂离子电池涂料分散剂。通过正交试验法对配料比进行优化,最佳配比(以丙烯酸为基准计算)为:丙烯酸100%、马来酸酐10%、丙烯酸丁酯6%、苯乙烯...针对电池涂料涂布要求,由苯乙烯磺酸钠、甲氧基聚乙二醇甲基丙烯酸酯等单体共聚合成了磷酸铁锂锂离子电池涂料分散剂。通过正交试验法对配料比进行优化,最佳配比(以丙烯酸为基准计算)为:丙烯酸100%、马来酸酐10%、丙烯酸丁酯6%、苯乙烯磺酸钠10%、甲氧基聚乙二醇甲基丙烯酸酯60%。在最优配料比条件下合成该分散剂,进一步探讨了分散剂用量对涂料流变性影响,结果表明:固含量为77.1%,分散剂用量为活性物质磷酸铁锂质量的0.3%时,涂料初始黏度为1 332 m Pa·s,静置90 min后黏度为1 656 m Pa·s,符合电池涂布工艺要求。展开更多
A novel synthesis method of carbon-coated LiNil/3Mnl/3COl/302 cathode material for lithium-ion battery was reported. The carbon coating was produced from a precursor, glucose, by microwave-pyrolysis method. The prepar...A novel synthesis method of carbon-coated LiNil/3Mnl/3COl/302 cathode material for lithium-ion battery was reported. The carbon coating was produced from a precursor, glucose, by microwave-pyrolysis method. The prepared powders were characterized by scanning electron microscopy （SEM）, X-ray diffraction （XRD）, X-ray fluorescence （XRF） and charge/discharge tests. XRD results indicate that the carbon coating does not change the phase structure of LiNil/3Mnl/3C01/302 material. SEM results show that the surface of spherical carbon-coated material becomes rough. Electrochemical performance results show that the carbon coating can improve the cycling performance of LiNii/3Mnl/3C01/302. The specific discharge capacity retention of the carbon-coated LiNi1/3Mnt/3Col/30z reached 85.0%-96.0% at the 50th cycle at 0.2C rate, and the specific discharge capacity retention is improved at a high rate.展开更多
文摘针对电池涂料涂布要求,由苯乙烯磺酸钠、甲氧基聚乙二醇甲基丙烯酸酯等单体共聚合成了磷酸铁锂锂离子电池涂料分散剂。通过正交试验法对配料比进行优化,最佳配比(以丙烯酸为基准计算)为:丙烯酸100%、马来酸酐10%、丙烯酸丁酯6%、苯乙烯磺酸钠10%、甲氧基聚乙二醇甲基丙烯酸酯60%。在最优配料比条件下合成该分散剂,进一步探讨了分散剂用量对涂料流变性影响,结果表明:固含量为77.1%,分散剂用量为活性物质磷酸铁锂质量的0.3%时,涂料初始黏度为1 332 m Pa·s,静置90 min后黏度为1 656 m Pa·s,符合电池涂布工艺要求。
基金Project(U1202272)supported by the National Natural Science Foundation of China
文摘A novel synthesis method of carbon-coated LiNil/3Mnl/3COl/302 cathode material for lithium-ion battery was reported. The carbon coating was produced from a precursor, glucose, by microwave-pyrolysis method. The prepared powders were characterized by scanning electron microscopy （SEM）, X-ray diffraction （XRD）, X-ray fluorescence （XRF） and charge/discharge tests. XRD results indicate that the carbon coating does not change the phase structure of LiNil/3Mnl/3C01/302 material. SEM results show that the surface of spherical carbon-coated material becomes rough. Electrochemical performance results show that the carbon coating can improve the cycling performance of LiNii/3Mnl/3C01/302. The specific discharge capacity retention of the carbon-coated LiNi1/3Mnt/3Col/30z reached 85.0%-96.0% at the 50th cycle at 0.2C rate, and the specific discharge capacity retention is improved at a high rate.
