具有(001)暴露晶面的圆片状LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2纳米晶的合成及其在锂离子电池中改进的倍率性能的研究
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- 英文论文题名：Synthesis of disklike LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 nanoplates with exposed(001)planes and their enhanced rate performance of Li-Ion Battery
- 论文作者：梅涛 ; 皮文博 ; 王贤保
- 英文论文作者：Tao Mei ; Wenbo Pi ; Xianbao Wang ; School of Materials Science and Engineering ; Hubei University
- 年：2016
- 作者机构：湖北大学材料科学与工程学院;
- 论文关键词：LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 ; (001)晶面 ; 表面活性剂 ; 正极 ; 锂离子电池
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十分会：化学电源
- 语种：中文
- 分类号：TM912;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十分会 ; 化学电源
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：219k
- 原文格式：D
- 会议级别：全国
摘要
通过简单的Pechini法和表面活性剂司班85的添加,制备出具有(001)暴露晶面的小圆片状的LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2(NCM)纳米晶。这种NCM纳米晶的直径约50 nm且厚度仅3 nm左右。通过实验研究发现,液态表面活性剂对于改变NCM纳米晶的形貌起到关键作用。当这种正极材料被应用在锂离子电池上时,其在2C的倍率下,循环了200圈之后,放电容量依然保持在165 mAh·g~(-1),且充放电效率高达98.2%。
With the addition of span 85,disklike LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2(NCM) nanoplates with exposed(001) planes were synthesized by the simple Pechini method.The diameter of the NCM nano-bulk is approximately 50 nm while the thickness is around 3 nm.The experiment results showed that the mixture of liquid surfactants played a key role in the change of morphology of NCM nanoplates.When this kind of cathode material was applied in lithium ion battery,achieved a high specific capacity of 165 mAh·g~(-1) at 2 C after 200 cycles,together with a charge/discharge efficiency as high as 98.2%.
With the addition of span 85,disklike LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2(NCM) nanoplates with exposed(001) planes were synthesized by the simple Pechini method.The diameter of the NCM nano-bulk is approximately 50 nm while the thickness is around 3 nm.The experiment results showed that the mixture of liquid surfactants played a key role in the change of morphology of NCM nanoplates.When this kind of cathode material was applied in lithium ion battery,achieved a high specific capacity of 165 mAh·g~(-1) at 2 C after 200 cycles,together with a charge/discharge efficiency as high as 98.2%.
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