水热煅烧法制备LiV_(3)O_(8)最优煅烧条件摸索  

Preparation of LiV_(3)O_(8) by hydrothermal and sintering combined method under optimal sintered conditions and its application in lithium batteries

作　　者：冯莉莉 张威 许立男 王蕊 陈海云 FENG Lili;ZHANG Wei;XU Linan;WANG Rui;CHEN Haiyun(School of Materials Engineering,North China Institute of Aerospace Engineering,Langfang Hebei 065000,China;School of Chemistry and Environment,Yunnan Minzu University,Kunming Yunnan 650500,China;Beijing Jiaotong University Haibin College,Cangzhou Hebei 061000,China)

机构地区：[1]北华航天工业学院材料工程学院,河北廊坊065000 [2]云南民族大学化学与环境学院,云南昆明650500 [3]北京交通大学海滨学院,河北沧州061000

出　　处：《电源技术》2021年第7期854-856,889,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(21761035,21463028);河北省高等学校科学技术研究项目重点项目(ZD2019106);河北省热防护材料重点实验室(SZX2020038);北华航天工业学院博士基金项目(BKY-2018-01)。

摘　　要：使用水热法与煅烧法结合制备了锂离子电池正极材料LiV_(3)O_(8)。对该方法制备LiV_(3)O_(8)材料的实验条件进行了摸索,主要考察了煅烧温度、煅烧时间、Li和V的物质的量比对所制备的LiV_(3)O_(8)晶型和纯度的影响。结果表明水热煅烧结合法制备LiV_(3)O_(8)材料最优煅烧条件为400℃3 h,最优Li和V的物质的量比为1.2∶3。该材料具有较高的比容量。LiV_(3)O_(8)material as lithium-ion battery cathode material was prepared by a combination of hydrothermal method and sintered method.The influences of sintered temperature,sintered time and Li∶V ratio on LiV_(3)O_(8)crystal form and purity were studied.As a result,the optimal sintered condition is 400℃for 3 h and the optimal Li/V ratio is 1.2:3.The LiV_(3)O_(8)material prepared by this method has a relatively high specific capacity.

关 键 词：LIV3O8 锂离子电池 水热合成法 

分 类 号：TM912.9[电气工程—电力电子与电力传动]