Development of 4V-Class bulk-type all-solid-state lithium rechargeable batteries by a combined use of complex hydride and sulfide electrolytes for room temperature operation

Atsushi Unemoto; Genki Nogami; Masaru Tazawa; Mitsugu Taniguchi; Shin Ichi Orimo

doi:10.2320/matertrans.M2017022

Development of 4V-Class bulk-type all-solid-state lithium rechargeable batteries by a combined use of complex hydride and sulfide electrolytes for room temperature operation

Atsushi Unemoto, Genki Nogami, Masaru Tazawa, Mitsugu Taniguchi, Shin Ichi Orimo

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We have operated a 4V-class bulk-type, all-solid-state LiCoO₂/Li battery at room temperature. The battery consisted of a Li₄(BH₄)₃I complex hydride electrolyte as the electrolyte layer, and a 80Li2S 20P2S5 sulfide glass as an electrolyte in the positive electrode layer. The assembled battery exhibited a 92 mAh g^-1 initial discharge capacity at 298 K and 0.1 C. The discharge capacity for the 20^th cycle remained as high as 83 mAh g^-1, corresponding to a capacity retention ratio of nearly 90%.

Original language	English
Pages (from-to)	1063-1068
Number of pages	6
Journal	Materials Transactions
Volume	58
Issue number	7
DOIs	https://doi.org/10.2320/matertrans.M2017022
Publication status	Published - 2017

Keywords

All-solid-state battery
Bulk-type
Complex hydride electrolyte
Room temperature operation
Sulfide electrolyte

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Development of 4V-Class bulk-type all-solid-state lithium rechargeable batteries by a combined use of complex hydride and sulfide electrolytes for room temperature operation. / Unemoto, Atsushi; Nogami, Genki; Tazawa, Masaru; Taniguchi, Mitsugu; Orimo, Shin Ichi.

In: Materials Transactions, Vol. 58, No. 7, 2017, p. 1063-1068.

Research output: Contribution to journal › Article › peer-review

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title = "Development of 4V-Class bulk-type all-solid-state lithium rechargeable batteries by a combined use of complex hydride and sulfide electrolytes for room temperature operation",

abstract = "We have operated a 4V-class bulk-type, all-solid-state LiCoO2/Li battery at room temperature. The battery consisted of a Li4(BH4)3I complex hydride electrolyte as the electrolyte layer, and a 80Li2S 20P2S5 sulfide glass as an electrolyte in the positive electrode layer. The assembled battery exhibited a 92 mAh g-1 initial discharge capacity at 298 K and 0.1 C. The discharge capacity for the 20th cycle remained as high as 83 mAh g-1, corresponding to a capacity retention ratio of nearly 90%.",

keywords = "All-solid-state battery, Bulk-type, Complex hydride electrolyte, Room temperature operation, Sulfide electrolyte",

author = "Atsushi Unemoto and Genki Nogami and Masaru Tazawa and Mitsugu Taniguchi and Orimo, {Shin Ichi}",

note = "Funding Information: The authors would like to thank Mr. K. Sato, Ms. H. Ohmiya, and Ms. N. Warifune for technical assistances. Financial supports from the Target Project 4 of WPI-AIMR, Tohoku University; Collaborative Research Center on Energy Materials, Tohoku University; JSPS KAKENHI Grant No. 25220911; and the Advanced Low Carbon Technology Research and Development Program (ALCA) from the Japan Science and Technology Agency (JST) are gratefully acknowledged.",

year = "2017",

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language = "English",

volume = "58",

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T1 - Development of 4V-Class bulk-type all-solid-state lithium rechargeable batteries by a combined use of complex hydride and sulfide electrolytes for room temperature operation

AU - Unemoto, Atsushi

AU - Nogami, Genki

AU - Tazawa, Masaru

AU - Taniguchi, Mitsugu

AU - Orimo, Shin Ichi

N1 - Funding Information: The authors would like to thank Mr. K. Sato, Ms. H. Ohmiya, and Ms. N. Warifune for technical assistances. Financial supports from the Target Project 4 of WPI-AIMR, Tohoku University; Collaborative Research Center on Energy Materials, Tohoku University; JSPS KAKENHI Grant No. 25220911; and the Advanced Low Carbon Technology Research and Development Program (ALCA) from the Japan Science and Technology Agency (JST) are gratefully acknowledged.

PY - 2017

Y1 - 2017

N2 - We have operated a 4V-class bulk-type, all-solid-state LiCoO2/Li battery at room temperature. The battery consisted of a Li4(BH4)3I complex hydride electrolyte as the electrolyte layer, and a 80Li2S 20P2S5 sulfide glass as an electrolyte in the positive electrode layer. The assembled battery exhibited a 92 mAh g-1 initial discharge capacity at 298 K and 0.1 C. The discharge capacity for the 20th cycle remained as high as 83 mAh g-1, corresponding to a capacity retention ratio of nearly 90%.

AB - We have operated a 4V-class bulk-type, all-solid-state LiCoO2/Li battery at room temperature. The battery consisted of a Li4(BH4)3I complex hydride electrolyte as the electrolyte layer, and a 80Li2S 20P2S5 sulfide glass as an electrolyte in the positive electrode layer. The assembled battery exhibited a 92 mAh g-1 initial discharge capacity at 298 K and 0.1 C. The discharge capacity for the 20th cycle remained as high as 83 mAh g-1, corresponding to a capacity retention ratio of nearly 90%.

KW - All-solid-state battery

KW - Bulk-type

KW - Complex hydride electrolyte

KW - Room temperature operation

KW - Sulfide electrolyte

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