CAJ | 학술논문

采用碳酸盐共沉淀法合成前驱体，经高速混合机与碳酸锂混合，通过高温焙烧得到系列改性富锂锰基材料Li[Li0.167Ni0.225Co0.05Mn0.558-yTiy]O2.通过对材料的各项性能进行比较发现，钛掺杂能明显提高材料的循环性能和倍率性能，但随着钛量的增大，材料的放电比容量有下降的趋势.
채용탄산염공침정법합성전구체，경고속혼합궤여탄산리혼합，통과고온배소득도계렬개성부리맹기재료Li[Li0.167Ni0.225Co0.05Mn0.558-yTiy]O2.통과대재료적각항성능진행비교발현，태참잡능명현제고재료적순배성능화배솔성능，단수착태량적증대，재료적방전비용량유하강적추세.
The precursor of MCO3(M=Ni,Co,Mn),which was prepared by a co-precipitation method with carbonates as starting materials, and lithium carbonate were mixed well by a high-speed mixer. A series of Li-rich Mn-based cathode materials Li[Li0.167Ni0.225Co0.05Mn0.558-yTiy]O2 were obtained by high-temperature reaction. The substitution of Mn by Ti with y=0.02 in Li[Li0.167Ni0.225Co0.05Mn0.558-yTiy]O2 significantly improved cycling performance and rate properties of the cathode materials, and the discharge capacity decreased with higher content of Ti.