期刊
MICROELECTRONIC ENGINEERING
卷 166, 期 -, 页码 1-4出版社
ELSEVIER
DOI: 10.1016/j.mee.2016.09.003
关键词
Electrospinning; Carbon-fiber web; Electroless Ni plating; Nickel sulfide; Lithium batteries
资金
- Leading Foreign Research Institutes Recruitment Program - Ministry of Science, ICE, and Future Planning, Korea (MSIP) [NRF-2015K1A4A3047100, NRF-2015M3A7B6027973, NRF-2015M3A6B3068660]
We fabricated webs of carbon fibers coated with Ni3S2/Ni particles having three-dimensional snowflake shapes by using electrospinning and electroless-plating methods in order to obtain high-performance cathode materials for lithium batteries. These snowflake shapes, i.e., spheres with urchin-like surfaces, can be expected to yield large surface areas, excellent electrical conductivity and high penetrability of electrolytes into the web structure. A lithium battery cell using the cathode materials we fabricated was indeed found to exhibit good cycling stability and specific capacity (initial discharge capacity of 554.67 mAh/g, irreversible capacity of about 50 mAh/g) and to retain 65% of its capacity after 30 cycles. Therefore, this new fabrication method should help produce rechargeable lithium batteries consisting of three-dimensional electrode materials with many reactive sites and with superior electrolyte penetrability. (C) 2016 Elsevier B.V. All rights reserved.
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