Effect of composition on the voltage fade phenomenon in lithium-, manganese-rich xLiMnO<inf>3</inf>andmiddot;(1-x)LiNi<inf>a</inf>Mn<inf>b</inf>Co<inf>c</inf>O<inf>2</inf> A combinatorial synthesis approach

Anh Vu, Yan Qin, Chi Kai Lin, Ali Abouimrane, Anthony K. Burrell, Samuel Bloom, Dean Bass, Javier Barenando, Ira Bloom

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The effect of composition on the voltage fade phenomenon was probed using combinatorial synthesis methods. In compositions that have the general formula, (Li<inf>2</inf>MnO<inf>3</inf>)<inf>a</inf>(LiNiO<inf>2</inf>)<inf>b</inf>(LiMnO<inf>2</inf>)<inf>c</inf>(LiCoO<inf>2</inf>)<inf>d</inf>, where 0 ≤ and a ≤ ;0.83, 0.15 ≤ and b ≤ ; 0.42, 0 ≤ and c ≤ ; 0.85, and 0 ≤ and d 0.30 (a + b + c + d = 1), the dependence of features in the x-ray diffraction pattern and of voltage fade on composition were identified and mapped. The observed values of voltage fade indicated that it displayed some sensitivity to composition, but that the sensitivity was not large. The values of voltage fade were found to be amenable to statistical modeling. The model indicated that it may be possible to lower the value of voltage fade below 0.01% by adjusting the composition of the system; however, the composition is not expected to have the layered-layered structure.

Original languageEnglish
Pages (from-to)711-718
Number of pages8
JournalJournal of Power Sources
Volume294
DOIs
Publication statusPublished - 16 Jul 2015
Externally publishedYes

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Keywords

  • Combinatorial synthesis
  • Lithium battery
  • Voltage fade

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

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