Open AccessAll-Solid-State Lithium-Sulfur Battery Based on a Nanoconfined LiBH4Electrolyte
Author(s) -
Supti Das,
Peter Ngene,
Poul Norby,
Tejs Vegge,
Petra E. de Jongh,
Didier Blanchard
Publication year - 2016
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/2.0771609jes
Subject(s) - electrolyte , lithium (medication) , cationic polymerization , inorganic chemistry , ionic conductivity , conductivity , materials science , cyclic voltammetry , battery (electricity) , fast ion conductor , chemical engineering , electrochemistry , mesoporous material , chemistry , electrode , thermodynamics , organic chemistry , polymer chemistry , medicine , power (physics) , physics , engineering , endocrinology , catalysis
In this work we characterize all-solid-state lithium-sulfur batteries based on nano-confined LiBH4in mesoporous silica as solid electrolytes. The nano-confined LiBH4has fast ionic lithium conductivity at room temperature, 0.1 mScm-1, negligible electronic conductivity and its cationic transport number (t+= 0.96), close to unity, demonstrates a purely cationic conductor. The electrolyte has an excellent stability against lithium metal. The behavior of the batteries is studied by cyclic voltammetry and repeated charge/discharge cycles in galvanostatic conditions. The batteries show very good performance, delivering high capacities versus sulfur mass, typically 1220 mAhg-1after 40 cycles at moderate temperature (55°C), 0.03 C rates and working voltage of 2 V. © The Author(s) 2016.
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