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Author Gopukumar, S. ♦ Schlorb, H. ♦ Rahner, D.
Source CSIR-Central Electrochemical Research Institute
Content type Text
Publisher Elsevier BV
File Format PDF
Copyright Year ©2001
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Lithium batteries ♦ Electrochemical Power Sources
Abstract Lithium ion cells have attracted the researchers ever since the first commercialization of Li LiCoO2 cells in Japan. However, the high cost and relatively low availability of cobalt has promoted the search for inexpensive and widely available manganate materials. LiMn2O4 is one of these materials which is being investigated extensively. However, LiMn2O4 shows fading of capacity during cycling involving mainly the Jahn–Teller Mn3C ion. In the present work, LiRXMn2−XO4 (RDCo, Ni, Fe, Ti) spinel compounds have been synthesized using low and high temperature methods. These materials were structurally evaluated using XRD. The prepared materials were electrochemically investigated using cyclic voltammetry and galvanostatic cycling techniques. The best performing material was assembled in a coin cell of type 2032 and charged at 500mAup to 4.4V. The cells were cycled at 1mAcurrent drain using 1MLiClO4 PC as an electrolyte. The results indicate that Ti doped spinel shows promising results. Electrical characteristics of these cells are presented in this paper.
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2001-01-01
Journal PeerReviewed