In situ conductance measurement to investigate roles of conductive additives in lithium ion battery electrodes

Matsuhiko Nishizawa, Hiromichi Koshika, Takashi Itoh, Mohamed Mohamedi, Takayuki Abe, Isamu Uchida

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Electrical dc conductance of a composite electrode for a lithium-ion battery was monitored in situ during successive charge/discharge cycles, in order to investigate functions of conductive additives. Such measurement was achieved by means of an interdigitated microarray electrode with a bipotentiostat. The composite films of mesocarbon microbeads (MCMBs) heat-treated at 1000°C were studied with conductive additives of acetylene black or a synthetic graphite in a 1 M LiClO4 non-aqueous carbonate solution. The role of the conductive additives is discussed in connection with their type and content within the composites. In addition, we propose a modified preparation procedure for the composites having a high retention of conductance.

Original languageEnglish
Pages (from-to)375-378
Number of pages4
JournalElectrochemistry Communications
Volume1
Issue number9
DOIs
Publication statusPublished - 1999 Sep 1

Keywords

  • Carbon
  • Conductive additives
  • Conductivity
  • Lithium ion batteries

ASJC Scopus subject areas

  • Electrochemistry

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