All‐Solid‐State Lithium‐Sulfur Batteries Using Sulfurized Alcohol Composite Material with Improved Coulomb Efficiency | Zendy

Takeuchi Tomonari | Zendy; Kojima Toshikatsu | Zendy; Kageyama Hiroyuki | Zendy; Kobayashi Hironori | Zendy; Mitsuhara Kei | Zendy; Nakanishi Koji | Zendy; Ohta Toshiaki | Zendy

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All‐Solid‐State Lithium‐Sulfur Batteries Using Sulfurized Alcohol Composite Material with Improved Coulomb Efficiency

Author(s) -

Takeuchi Tomonari,

Kojima Toshikatsu,

Kageyama Hiroyuki,

Kobayashi Hironori,

Mitsuhara Kei,

Nakanishi Koji,

Ohta Toshiaki

Publication year - 2019

Publication title -

energy technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.91

H-Index - 44

eISSN - 2194-4296

pISSN - 2194-4288

DOI - 10.1002/ente.201900509

Subject(s) - organosulfur compounds , materials science , sulfur , composite number , lithium (medication) , electrolyte , solid state , chemical engineering , absorption (acoustics) , cathode , composite material , chemistry , metallurgy , electrode , medicine , engineering , endocrinology

Sulfurized alcohol composite (SAC), a new type of organosulfur material, is applied to an all‐solid‐state cell with a sulfur‐based solid electrolyte (SE), Li 3 PS 4 . The cell shows high specific capacity (600–800 mAh g −1 ), and the initial coulomb efficiency is improved by mechanically milling the cathode layer (SAC + SE). The improvement is attributed to the partial lithiation of the SAC sample by milling with SE, which is confirmed by S K‐edge X‐ray absorption fine structure measurements. Such prelithiation is advantageous for fabricating high‐energy‐density all‐solid‐state cells.

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