一种通用软化学方法可控制备高性能棒状微纳结构锂离子电池锰基电极材料
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- 英文论文题名：A General and Mild Approach to Controllable Preparation of Manganese-based Micro/nanostructured Bars for High Performance Lithium-Ion Batteries
- 论文作者：张卫新 ; 李昇 ; 杨则恒 ; 范小明
- 英文论文作者：ZHANG Weixin ; LI Sheng ; YANG Zeheng ; FAN Xiaoming ; School of Chemistry and Chemical Engineering ; Hefei University of Technology
- 年：2016
- 作者机构：合肥工业大学化学与化工学院;
- 论文关键词：锂离子电池 ; 软化学 ; 微纳结构 ; 锰基电极材料
- 英文论文关键词：lithium-ion battery ; chimie douce ; micro/nanostructure ; manganese-based electrode materials
- 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-第三十六分会：纳米材料合成与组装
- 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-第三十六分会 ; 纳米材料合成与组装
- 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：258k
- 原文格式：D
- 会议级别：全国
摘要
这里我们介绍一种通用的软化学方法-基于乙醇/水混合溶剂共沉淀方法成功制备一系列高能量密度和功率密度的一维微纳结构锂离子电池电极材料,如层状的三元LiNixCo_(1-x-y)MnyO_2和富锂xLi_2MnO_3·(1-x)LiNi_(1/3)Mn_(1/3)Co_(1/3)O_2(0≤x≤1)、尖晶石型的LiNi_(0.5)Mn_(1.5)O_4等。通过调节混合溶剂中乙醇/水的体积比对晶体的成核和生长动力学进行有效调控,进而实现对材料的尺寸、形貌、结构以及性能的优化。该方法在制备高性能一维锂离子电池锰基电极材料方面具有易于控制、重复性好和通用性强等优势。
Herein we report a Chimie Douce approach--- by mixed solvent co-precipitation--- to selectively prepare an extensive series of 1D micro/nanostructured electrode materials including layered LiN ixCo_(1-x-y)MnyO_2, spinel LiN i_(0.5)Mn_(1.5)O_4 and layered Li-rich x Li_2 Mn O_3·(1-x)LiN i_(1/3)Mn_(1/3)Co_(1/3)O_2(0 ≤ x ≤ 1) for LIBs with high energy and power densities. Based on the kinetic elaboration of crystallite nucleation and growth through mixed solvent mediation, the new route is easily controllable, repeatable, and generalizable to the fabrication of highly promising manganese-based electrode materials with tunable 1D micro/nanostructures for enhanced performances in lithium-ion batteries.
Herein we report a Chimie Douce approach--- by mixed solvent co-precipitation--- to selectively prepare an extensive series of 1D micro/nanostructured electrode materials including layered LiN ixCo_(1-x-y)MnyO_2, spinel LiN i_(0.5)Mn_(1.5)O_4 and layered Li-rich x Li_2 Mn O_3·(1-x)LiN i_(1/3)Mn_(1/3)Co_(1/3)O_2(0 ≤ x ≤ 1) for LIBs with high energy and power densities. Based on the kinetic elaboration of crystallite nucleation and growth through mixed solvent mediation, the new route is easily controllable, repeatable, and generalizable to the fabrication of highly promising manganese-based electrode materials with tunable 1D micro/nanostructures for enhanced performances in lithium-ion batteries.
引文
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[2]Yingmeng Zhang,Weixin Zhang*,Zeheng Yang,Heyun Gu,et al.Angew.Chem.Int.Ed.2015,54,3932-3936.
[3]Weixin Zhang*,Guo Ma,Heyun Gu,Zeheng Yang,et al.J.Power Sources 2015,273,561-565.
[4]Zeheng Yang*,Jianbo Lu,Doucheng Bian,Weixin Zhang,et al.J.Power Sources,2014,272,144-151.