Abstract translation:本发明涉及一种使用球形过渡金属络合物碳酸盐的锂二次电池用非水系阴极材料及其制备方法。 本发明是为了确保优异的预期寿命,同时通过用纳米尺寸的金属氧化物涂覆球形过渡金属络合物碳酸盐的表面来实现250mAh / g以上的高容量,以提高结构稳定性 最终阴极材料。 根据本发明,通过使用钴材料,镍材料,锰材料,羧基材料和氨材料制备的球形过渡金属络合物碳酸盐的表面涂覆有二氧化钛, 制备具有表面涂覆有粒径为5-25μm的过渡金属氧化物的表面和由化学式表示的组成比的球形过渡金属络合物碳酸盐:Ni x Co y Mn 1-xy Ti z CO 3(0.0 < x‰¤0.3,0.0
Abstract:
The present invention relates to a manufacturing method of cathode material for Mg secondary batteries, and cathode material for Mg secondary batteries manufactured thereby, more specifically to a manufacturing method of cathode material for Mg secondary batteries which has Chevreul structure and which is coated with carbon, and Chevreul structured cathode material for Mg secondary batteries manufactured thereby. The method suppresses the growth of particles to form even particles by evenly coating the surface of the Chevreul structured cathode active material; the particles increases the spreading speed of Mg ions into the Chevreul structure by having a large surface area, which leads an improvement of conductivity. In addition, the present invention can improve: the structural safety of electrodes comprising the cathode material for Mg secondary batteries; the initial capacity of Mg secondary batteries; and the high efficiency property of Mg secondary batteries.
Abstract:
본 발명은 리튬 이차 전지 및 그의 제조 방법에 관한 것으로, 이러한 본 발명은 케이스와, 상기 케이스 내측에 일정 간격을 가지는 배치되며 리튬 복합금속계 양극을 포함하는 전극부와, 상기 다수의 전극부들 사이에 배치되는 분리막과 설폰계 물질의 적어도 일부가 혼합된 전해액으로 구성된 전해질층, 및 상기 양극 상에 형성되며 설폰계 물질에 대응한 부반응에 의하여 형성된 피막을 포함하며, 상기 양극은 Li 2 [Ni 0.6~0.9 Co 0.2~0.05 Mn 0.2~0.05 ]O 2 인 것을 특징으로 하는 리튬 이차 전지 및 이의 제조 방법을 제공한다.
Abstract:
The present invention relates to a composite oxide-based cathode active material for a magnesium secondary battery represented by Mg_yMA_2O_7-zC_z and a magnesium secondary battery comprising the same. The cathode active material for a magnesium secondary battery of the present invention has a new structure in which polyanions form a framework and magnesium ions are chemically or electrochemically inserted or separated to/from a channel or a tunnel existing between the framework formed by the polyanions so as to not only improve electroconductivity by facilitating the movement of magnesium ions among particles but also express relatively high stability, a long lifespan and excellent thermal properties in comparison with an existing magnesium secondary battery of which the crystalline structure collapses during the movement of the magnesium ions.