首页>
外国专利>
SPHERICAL OR SPHEROIDAL LITHIUM ION BATTERY POSITIVE ELECTRODE MATERIAL AND LITHIUM ION BATTERY
SPHERICAL OR SPHEROIDAL LITHIUM ION BATTERY POSITIVE ELECTRODE MATERIAL AND LITHIUM ION BATTERY
展开▼
机译:球形或球形锂离子电池正极材料和锂离子电池
展开▼
页面导航
摘要
著录项
相似文献
摘要
To provide a lithium ion battery positive electrode material which is high in specific capacity and superior in high-temperature stabilizing function, safety and high-temperature charge/discharge cycle performance, of which the manufacturing process is simple and the manufacturing cost is relatively low.SOLUTION: A lithium ion battery positive electrode material is represented by the general formula, LiNiCoMnMOwhere 1.02≤a≤1.20, 0.0≤b≤0.5, 0.30≤x≤0.60, 0.20≤y≤0.4, 0.05≤z≤0.50 and x+y+z=1, and M element represents one or more elements selected from Mg, Ti, Al, Zr, Y, Co, Mn, Ni, Ba and a rare earth element. The lithium ion battery positive electrode material includes primary particles exhibiting a spherical or spheroidal shape under a scanning electron microscope, and secondary particles formed by agglomeration groups of the primary particles. The number-based percentage of the secondary particles formed by agglomeration of groups of the primary particles is 30% or less.SELECTED DRAWING: Figure 1-1
展开▼
机译:本发明提供一种锂离子电池正极材料,该锂离子电池正极材料的比容高,高温稳定功能,安全性和高温充放电循环性能优异,且制造工艺简单且制造成本较低。解决方案:锂离子电池正极材料由通式LiNiCoMnMO表示,其中1.02≤a≤1.20、0.0≤b≤0.5、0.30≤x≤0.60、0.20≤y≤0.4、0.05≤z≤0.50和x + y + z = 1,并且M元素表示选自Mg,Ti,Al,Zr,Y,Co,Mn,Ni,Ba和稀土元素中的一种或多种元素。锂离子电池正极材料包括在扫描电子显微镜下呈球形或椭球形的一次粒子和由该一次粒子的团聚形成的二次粒子。通过一次粒子团聚形成的二次粒子的数量百分比百分比为30%或更小。图1-1
展开▼