All-crystal-state lithium-ion batteries: Innovation inspired by novel flux coating method

Katsuya Teshima, Hajime Wagata, Shuji Oishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

All-solid-state lithium-ion rechargeable batteries (LIBs) consisting of solid electrolyte materials have attracted a number of research interests because no use of organic liquid electrolyte increases packaging density and intrinsic safety of LIB, which contribute the development on environmentally-friendly automobiles such as electric vehicle (EV), hybrid vehicle (HV), and plug-in hybrid vehicle (HEV), in addition to efficient utilization of electric energy in smart grid. Among various solid electrolytes, inorganic electrolyte materials have achieved relatively high lithium-ion conductivity and better stability at an ambient atmosphere. Nevertheless, there is a drawback that is relatively high internal resistance owing to relatively slow Li ion movement caused by low crystallinity of materials, scattering at interfaces such as current collector/electrode active materials and electrode active materials/electrolyte materials. In this context, we have proposed a concept, all-crystal-state LIB, in which all the component materials have high crystallinity and those interfaces are effective for Li ion diffusion. Here, we present the fabrication of oxide crystals and crystal layers via flux method and flux coating. Flux method is one of the solution processes in which idiomorphic highly crystalline materials can be obtained under the melting point of the target ones. In addition, it provides simple, low-cost and environmentally- benign pathway compared to conventional solid-state-reaction method. Flux coating method is developed to fabricate high-quality crystal layers (films) on various substrates. High-quality crystals and crystal layers of cathode, anode and electrolyte materials were successfully fabricated.

Original languageEnglish
Title of host publication9th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2013
PublisherIMAPS-International Microelectronics and Packaging Society
Pages187-191
Number of pages5
ISBN (Print)9781629937182
Publication statusPublished - 1 Jan 2013
Event9th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2013 - Orlando, FL, United States
Duration: 23 Apr 201325 Apr 2013

Publication series

Name9th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2013

Conference

Conference9th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2013
CountryUnited States
CityOrlando, FL
Period23/04/1325/04/13

Keywords

  • Active electrode materials
  • All-solid-state lithium-ion battery
  • Electrolyte materials
  • Flux coating method
  • Flux method

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  • Cite this

    Teshima, K., Wagata, H., & Oishi, S. (2013). All-crystal-state lithium-ion batteries: Innovation inspired by novel flux coating method. In 9th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2013 (pp. 187-191). (9th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2013). IMAPS-International Microelectronics and Packaging Society.