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Electrochemical Properties of the NiS Powder Prepared by Co-Precipitation Method for Lithium Secondary Battery
- Authors
- Ryu, Ho-Suk; Ha, Chung-Wan; Ji, Seong-Yong; Ahn, In-Shup; Ahn, Jou-Hyeon; Ahn, Hyo-Jun; Kim, Ki-Won
- Issue Date
- Oct-2014
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Lithium Battery; NiS; Co-Precipitation Method; Nickel Sulfide; Metal Sulfide
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.10, pp 7943 - 7947
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 14
- Number
- 10
- Start Page
- 7943
- End Page
- 7947
- ISSN
- 1533-4880
1533-4899
- Abstract
- We synthesized two nickel sulfide powders by simple method. One is nickel sulfide powder (CNS) by co-precipitation is composed of nano-sized nickel sulfides as NiS and NiS2. The other is nickel sulfide powder (HNS) by heat-treatment of CNS is composed nano-sized NiS. The electrode using CNS has a high first discharge capacity of 600 mA h g(-1) at 0.5 C and the discharge capacity after 20th cycle is 312 mA h g(-1). The electrode using HNS has a high first discharge capacity of 551 mA h g(-1) at 0.5 C and has the discharge capacity of 412 mA h g(-1) after 50th. The discharge rate capability has over 92% at 1 C versus 0.2 C. The nano-sized nickel sulfides are synthesized by simple co-precipitation method has good electrochemical properties such as high first discharge capacity, good cycle life and good rate capability for lithium secondary battery.
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