Development of complex hydride-based all-solid-state lithium ion battery applying low melting point electrolyte

Shohei Suzuki, Jun Kawaji, Koji Yoshida, Atsushi Unemoto, Shin ichi Orimo

研究成果: Article査読

7 被引用数 (Scopus)

抄録

A thermally durable all-solid-state lithium ion battery composed of a complex hydride, oxide electrolytes, and LiNi1/3Mn1/3Co1/3O2 active material is developed. This battery exhibits a discharge capacity of 56 mAh g−1, and the tenth capacity retention ratio is 29% at 150 °C owing to the large contact resistance between the electrolyte layer and the composite positive electrode layer. This large contact resistance is reduced by introducing an adhesive layer comprised of a mixture of LiBH4 and LiNH2 that is easily melted by thermal treatment and fills the voids and pores at the interface between the two layers. As a result, repeated charge-discharge cycles are successfully demonstrated at 150 °C with a high discharge capacity and discharge capacity retention ratio. The first discharge capacity is enhanced to 114 mAh g−1 and the capacity retention ratio at the tenth cycle is improved to 71%. These results demonstrate that using an adhesive layer is an effective measure to reduce the contact resistance and thereby enhance the performance of the battery.

本文言語English
ページ(範囲)97-103
ページ数7
ジャーナルJournal of Power Sources
359
DOI
出版ステータスPublished - 2017

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

フィンガープリント

「Development of complex hydride-based all-solid-state lithium ion battery applying low melting point electrolyte」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル