N,N-二甲基甲酰胺对氮化锂的稳定性机理及其在锂离子超级电容器预锂化中的应用（英文）

被引：8

作者：

刘翠连 ^{[1
]}

李天宇 ^{[1
]}

张洪章 ^{[1
]}

宋子晗 ^{[1
]}

曲超 ^{[1
]}

侯广进 ^{[2
]}

张华民 ^{[1
]}

倪传法 ^{[3
]}

李先锋 ^{[1
]}

机构：

[1] Division of Energy Storage, Dalian Institute of Chemical Physics, Chinese Academy of Sciences

[2] Solid-state NMR & Catalytic Chemistry Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences

[3] Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences

来源：

Science Bulletin | 2020年 / 65卷 / 06期

关键词：

Li3N; Soft package; Pre-lithiation; Lithium-ion capacitors; High specific energy and long cycle life;

D O I：

暂无

中图分类号：

TM53 [电容器]; O614.111 [锂Li];

学科分类号：

080801 ; 070301 ; 081704 ;

摘要：

氮化锂是一种极好的零残留正极预锂化添加剂,可用于弥补锂离子电容器及锂离子电池在首圈的锂损失.但是,在电极制造过程中,氮化锂与非质子极性溶剂的相容性差,与N-甲基-2-吡咯烷酮(NMP)等常用溶剂具有很高的反应性,限制了以氮化锂作为预锂添加剂的技术推广应用.本文通过商业上可用的匀浆涂布途径制备了含氮化锂的电极,使用N,N-二甲基甲酰胺(DMF)作为匀浆溶剂.实验分析和DFT模拟证实了DMF的分子稳定机理,DMF的脱氢能明显大于其他常用溶剂.添加20%氮化锂的软包装锂离子电容器具有出色的倍率性能、循环稳定性和超高的能量密度,其能量密度是不含Li3N器件的2.3倍,1万次充放电循环后,其能量保持率高达90%.

引用

页码：434 / 442

页数：9

共 23 条

[1] 锂离子电容器集流体用穿孔箔的研究进展 [J].

徐启远 ;

徐永进 ;

朱永法 ;

姜冬冬 .

材料导报, 2013, (23) :28-31

[2]

Lithium Ion Capacitors in Organic Electrolyte System: Scientific Problems, Material Development, and Key Technologies[J] . Pengxian Han,Gaojie Xu,Xiaoqi Han,Jingwen Zhao,Xinhong Zhou,Guanglei Cui.Advanced Energy Materials . 2018 (26)

[3]

Dual Roles of Li＜sub＞3＜/sub＞N as an Electrode Additive for Li‐Excess Layered Cathode Materials: A Li‐Ion Sacrificial Salt and Electrode‐Stabilizing Agent[J] . Xiaofei Bian,Qiang Pang,Prof. Yingjing Wei,Prof. Dong Zhang,Dr. Yu Gao,Prof. Gang Chen.Chemistry – A European Journal . 2018 (52)

[4]

Electrochemical performances and capacity fading behaviors of activated carbon/hard carbon lithium ion capacitor[J] . Xianzhong Sun,Xiong Zhang,Wenjie Liu,Kai Wang,Chen Li,Zhao Li,Yanwei Ma.Electrochimica Acta . 2017

[5] HierarchicalCuCo2O4@nickel-cobalthydroxidescore/shellnanoarchitecturesforhigh-performancehybridsupercapacitors [J].

Chenggang Wang ;

Kai Guo ;

Weidong He ;

Xiaolong Deng ;

Peiyu Hou ;

Fuwei Zhuge ;

Xijin Xu ;

Tianyou Zhai .

Science Bulletin, 2017, 62 (16) :1122-1131+1097

[6]

Eliminating pre-lithiation step for making high energy density hybrid Li-ion capacitor[J] . Sheng S. Zhang.Journal of Power Sources . 2017

[7]

Enabling high energy density Li-ion batteries through Li 2 O activation[J] . Ali Abouimrane,Yanjie Cui,Zonghai Chen,Ilias Belharouak,Hamdi B. Yahia,Huiming Wu,Rajeev Assary,Larry A. Curtiss,Khalil Amine.Nano Energy . 2016

[8]

Lithium Sulfide/Metal Nanocomposite as a High‐Capacity Cathode Prelithiation Material[J] . Yongming Sun,Hyun‐Wook Lee,Zhi Wei Seh,Guangyuan Zheng,Jie Sun,Yanbin Li,Yi Cui.Advanced Energy Materials . 2016 (13)

[9]

Different types of pre-lithiated hard carbon as negative electrode material for lithium-ion capacitors[J] . Jin Zhang,Xifeng Liu,Jing Wang,Jingli Shi,Zhiqiang Shi.Electrochimica Acta . 2016

[10]

A new strategy to mitigate the initial capacity loss of lithium ion batteries[J] . Xin Su,Chikai Lin,Xiaoping Wang,Victor A. Maroni,Yang Ren,Christopher S. Johnson,Wenquan Lu.Journal of Power Sources . 2016

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