In Situ Engineering of the Electrode-Electrolyte Interface for Stabilized Overlithiated Cathodes

被引:27
|
作者
Evans, Tyler [1 ,2 ]
Piper, Daniela Molina [2 ]
Sun, Huaxing [3 ]
Porcelli, Timothy [3 ]
Kim, Seul Cham [4 ]
Han, Sang Sub [4 ]
Choi, Yong Seok [4 ]
Tian, Chixia [5 ]
Nordlund, Dennis [6 ]
Doeff, Marca M. [5 ]
Ban, Chunmei [7 ]
Cho, Sung-Jin [8 ]
Oh, Kyu Hwan [4 ]
Lee, Se-Hee [1 ]
机构
[1] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA
[2] SiILion Inc, Broomfield, CO 80020 USA
[3] Univ Colorado, Dept Chem, Boulder, CO 80309 USA
[4] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea
[5] Lawrence Berkeley Natl Lab, Energy Storage & Distributed Resources Div, Berkeley, CA 94720 USA
[6] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA
[7] Natl Renewable Energy Lab, Ctr Chem & Mat Sci, Golden, CO 80401 USA
[8] North Carolina A&T State Univ, Joint Sch Nanosci & Nanoengn, Greensboro, NC 27411 USA
基金
美国国家科学基金会;
关键词
LITHIUM-ION BATTERIES; FLUOROETHYLENE CARBONATE; HIGH-CAPACITY; ELECTROCHEMICAL PERFORMANCES; OXYGEN LOSS; MECHANISM; LI2MNO3; MN; NI; SPECTROSCOPY;
D O I
10.1002/adma.201604549
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The first-ever demonstration of stabilized Si/lithium-manganese-rich full cells, capable of retaining >90% energy over early cycling and >90% capacity over more than 750 cycles at the 1C rate (100% depth-of-discharge), is made through the utilization of a modified ionic-liquid electrolyte capable of forming a favorable cathode-electrolyte interface. [GRAPHICS] .
引用
收藏
页数:7
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