CAJ | 학술논문

锂离子电池三元材料 LiNi1－x－y Cox Aly O2(NCA)为目前已经工业化应用的比容量最高的正极材料，具有循环性能好、原材料丰富和成本较低等优势，是一种极具应用前景的锂离子动力电池正极材料。但是，目前各种方法很难制备出纯相结构的 LiNi1－x－y Cox Aly O2材料，并且存在首次充放电效率不高、高温稳定性能较差、振实密度低等缺点，制约着该材料的进一步应用和发展。综述了国内外三元材料 LiNi1－x－y Cox Aly O2的研究进展，重点介绍了制备方法以及掺杂、包覆和表面处理等改性研究方法，并展望了LiNi1－x－y Cox Aly O2材料的未来应用和发展方向。
리리자전지삼원재료 LiNi1－x－y Cox Aly O2(NCA)위목전이경공업화응용적비용량최고적정겁재료，구유순배성능호、원재료봉부화성본교저등우세，시일충겁구응용전경적리리자동력전지정겁재료。단시，목전각충방법흔난제비출순상결구적 LiNi1－x－y Cox Aly O2재료，병차존재수차충방전효솔불고、고온은정성능교차、진실밀도저등결점，제약착해재료적진일보응용화발전。종술료국내외삼원재료 LiNi1－x－y Cox Aly O2적연구진전，중점개소료제비방법이급참잡、포복화표면처리등개성연구방법，병전망료LiNi1－x－y Cox Aly O2재료적미래응용화발전방향。
The mixed Ni,Co,Al material has the highest capacity as the industrialized cathode of lithium-ion batteries,which has the advantages of reasonable cycle ability,low cost and rich raw materials.It is the candi-date of the potential materials for lithium ion power battery.However,it is difficult to prepare a pure phase of LiNi1-x-y Cox Aly O2 by these methods.On the other hand,the disadvantages,such as low charge-discharge effi-ciency,poor stability in high temperature and low tap density,constrained its development and application.Cur-rent research of LiNi1-x-y Cox Aly O2 material was focused on this review,including synthetic methods,doping, coating and surface treatment.The application and prospects of LiNi1-x-y Cox Aly O2 for lithium ion batteries are predicted.