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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
MAT.P-454 |
| Subject |
Free-standing MnCoOx@NCNF anode material for Li-ion battery |
| Authors |
Jitendra Samdani, Jong-Sung Yu*
Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology, Korea
|
| Abstract |
Herein, a smart strategy is proposed to tailor unique interwoven nanocable architecture consisting of MnCoOx nanoparticles embedded in 1-dimensional (ID) mesoporous N-doped carbon nanofibers (MnCoOx@NCNFs) for the first time by using electrospinning technique. As-prepared MnCoOx@NCNF composite is tested as a current collector-free and binder-free flexible anode, which eliminates slurry preparation process during electrode fabrication in Li-ion battery (LIB). They possess versatile structural characteristics which can address simultaneously different issues such as poor conductivity, low cycling stability, volume variation, flexibility, and binder issue associate with the metal oxide, and thus enable not only high initial discharge and charge capacities but also reversible discharge cycling stability of almost 80 % retention up to 100 cycle and 60 % retention up to 500 cycles at 1 A/g. Such high Li storage capacity and excellent cycling stability are attributed to the unique flexible and free-standing spider network-like architecture of 1D MnCoOx@NCNFs, which provides the platform to bicontinuous electron/ion pathways for superior electrochemical performance. Along with excellent electrochemical performance, simple synthesis procedure of unique binder-free MnCoOx@NCNFs can achieve cost-effective scalable mass production for practical use in flexible mode, not merely in LIBs but also in a wide spectrum of energy storage fields. |
| E-mail |
jitendrasamdani@dgist.ac.kr |
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123rd General Meeting of the KCS