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Electrochemical properties of nickel-precipitated pyrite as cathode active material for lithium/pyrite cell

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Abstract

The effects of nickel precipitation and the cut-off voltage on the electrochemical properties of a pyrite cathode were investigated by using an electroless nickel-plating method. After nickel precipitation, some nickel particles that were precipitated on the surface of pyrite accumulated between the pyrite powder particles. In the voltage range of 0.4-3.2 V, a cell with nickel-precipitated pyrite exhibited a rapid decrease in discharge capacity and poor columbic efficiency. On the other hand, in the voltage range of 0.8-2.4 V, the cell showed an improved cycle life property and good coulombic efficiency because irreversible reactions below 0.8 V and sulfur oxidation above 2.4 V were suppressed by controlling the cut-off potential and the internal resistance was decreased by nickel precipitation.
Authors:
Choi, Y J; Kim, N W; [1]  Kim, K.W., E-mail: kiwonkim@gnu.ac.k; [1]  Cho, K K; Cho, G B; Ahn, H J; Ahn, J H; [1]  Ryu, K S; [2]  Gu, H B [3] 
  1. i-Cube Center, ITRC for Energy Storage and Conversion, Gyeongsang National University, 900 Gazwadong, Jinju, Gyeongnam 660-701 (Korea, Republic of)
  2. Department of Chemistry, University of Ulsan, Ulsan 680-749 (Korea, Republic of)
  3. Department of Electrical Engineering, College of Engineering, Chonnam National University, 300 Yongbong-dong, Buk-ku, Kwangju (Korea, Republic of)
Publication Date:
Oct 19, 2009
DOI:
https://doi.org/10.1016/j.jallcom.2009.05.140
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Alloys and Compounds; Journal Volume: 485; Journal Issue: 1-2; Other Information: DOI: 10.1016/j.jallcom.2009.05.140; PII: S0925-8388(09)01133-5; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.
Subject:
36 MATERIALS SCIENCE; CATHODES; EFFICIENCY; ELECTROCHEMICAL CELLS; ELECTROCHEMISTRY; LITHIUM; NICKEL; OXIDATION; PLATING; PRECIPITATION; PYRITE; ALKALI METALS; CHEMICAL REACTIONS; CHEMISTRY; DEPOSITION; ELECTRODES; ELEMENTS; METALS; MINERALS; SEPARATION PROCESSES; SULFIDE MINERALS; SURFACE COATING; TRANSITION ELEMENTS
OSTI ID:
21392101
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0925-8388; JALCEU; TRN: NL10R1351119524
Availability:
Available from http://dx.doi.org/10.1016/j.jallcom.2009.05.140
Submitting Site:
NLN
Size:
page(s) 462-466
Announcement Date:
Feb 07, 2011

Journal Article:

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Citation Formats

Choi, Y J, Kim, N W, Kim, K.W., E-mail: kiwonkim@gnu.ac.k, Cho, K K, Cho, G B, Ahn, H J, Ahn, J H, Ryu, K S, and Gu, H B. Electrochemical properties of nickel-precipitated pyrite as cathode active material for lithium/pyrite cell. Netherlands: N. p., 2009. Web. doi:10.1016/j.jallcom.2009.05.140.
Choi, Y J, Kim, N W, Kim, K.W., E-mail: kiwonkim@gnu.ac.k, Cho, K K, Cho, G B, Ahn, H J, Ahn, J H, Ryu, K S, & Gu, H B. Electrochemical properties of nickel-precipitated pyrite as cathode active material for lithium/pyrite cell. Netherlands. https://doi.org/10.1016/j.jallcom.2009.05.140
Choi, Y J, Kim, N W, Kim, K.W., E-mail: kiwonkim@gnu.ac.k, Cho, K K, Cho, G B, Ahn, H J, Ahn, J H, Ryu, K S, and Gu, H B. 2009. "Electrochemical properties of nickel-precipitated pyrite as cathode active material for lithium/pyrite cell." Netherlands. https://doi.org/10.1016/j.jallcom.2009.05.140.
@misc{etde_21392101,
title = {Electrochemical properties of nickel-precipitated pyrite as cathode active material for lithium/pyrite cell}
 author = {Choi, Y J, Kim, N W, Kim, K.W., E-mail: kiwonkim@gnu.ac.k, Cho, K K, Cho, G B, Ahn, H J, Ahn, J H, Ryu, K S, and Gu, H B}
 abstractNote = {The effects of nickel precipitation and the cut-off voltage on the electrochemical properties of a pyrite cathode were investigated by using an electroless nickel-plating method. After nickel precipitation, some nickel particles that were precipitated on the surface of pyrite accumulated between the pyrite powder particles. In the voltage range of 0.4-3.2 V, a cell with nickel-precipitated pyrite exhibited a rapid decrease in discharge capacity and poor columbic efficiency. On the other hand, in the voltage range of 0.8-2.4 V, the cell showed an improved cycle life property and good coulombic efficiency because irreversible reactions below 0.8 V and sulfur oxidation above 2.4 V were suppressed by controlling the cut-off potential and the internal resistance was decreased by nickel precipitation.}
 doi = {10.1016/j.jallcom.2009.05.140}
 journal = []
 issue = {1-2}
 volume = {485}
 place = {Netherlands}
 year = {2009}
 month = {Oct}
 }