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Solvent‐Free 4 V‐Class All‐Solid‐State Lithium‐Ion Polymer Secondary Batteries
Author(s) -
Seki Shiro
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700375
Subject(s) - electrode , electrolyte , materials science , electrochemistry , lithium (medication) , battery (electricity) , graphite , polymer , chemical engineering , solvent , ion , energy storage , lithium ion battery , composite material , chemistry , organic chemistry , medicine , engineering , endocrinology , power (physics) , physics , quantum mechanics
To realize high‐safety, large‐scaled energy storage devices, solvent‐free lithium‐ion secondary batteries using polyether‐based solid polymer electrolytes (SPEs) were fabricated. We fabricated 4 V‐class [LiNi 1/3 Mn 1/3 Co 1/3 O 2 positive electrode | SPE | graphite negative electrode] cells after designing suitable SPE / electrode interfaces, for example, by modification of the LiNi 1/3 Mn 1/3 Co 1/3 O 2 positive electrode surface and control of the electrochemical reaction area at the graphite negative electrode. The prepared cell showed a reversible capacity of over 120 mAhg −1 (based on the LiNi 1/3 Mn 1/3 Co 1/3 O 2 capacity) with favorable cycle properties. The possibility of achieving high‐safety, high‐performance (high voltage operation), low‐cost new battery systems was demonstrated.