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Futoshi Matsumoto and Takao Gunji
Water in Lithium-Ion Batteries
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Futoshi Matsumoto
Department of Materials and Life Chemistry, Kanagawa University, Yokohama, Japan
Takao Gunji
Department of Materials and Life Chemistry, Kanagawa University, Yokohama, Japan
ISSN 2191-5520 e-ISSN 2191-5539
SpringerBriefs in Energy
ISBN 978-981-16-8785-3 e-ISBN 978-981-16-8786-0
https://doi.org/10.1007/978-981-16-8786-0
The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022
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Preface
Water (H2O) in lithium-ion batteries (LIBs), which are constructed with anodes, cathodes and organic electrolytes that contain lithium salts, can degrade the cell performance and seriously damage the materials. However, because a small amount of H2O in cells contributes to the formation of a solid electrolyte interphase (SEI), the complete removal of H2O from cells lowers battery performance and increases the expense of H2O removal from the battery materials. The optimal concentration of H2O for each battery material has been determined, and these concentrations are maintained with appropriate removal methods and H2O scavengers that were recently developed to establish both high performance and low cost. More recently, to achieve both the safety and low cost of LIBs, the development of anode and cathode preparations by aqueous processes and aqueous LIBs in which aqueous electrolytes containing lithium salts are used as electrolytes has progressed. In this review, information on the H2O content in LIBs, the reactivity of anodes, cathodes and electrolytes with water and the processes underlying H2O resistance in LIB materials is reviewed from the perspective of H2O concentration and LIB stability. The goal of this review is to provide appropriate information concerning the amount of H2O needed in cells to achieve stable and high cell performance.
Futoshi Matsumoto
Takao Gunji
Yokohama, Japan
Contents
The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022
F. Matsumoto, T. Gunji Water in Lithium-Ion Batteries SpringerBriefs in Energy https://doi.org/10.1007/978-981-16-8786-0_1
1. Introduction
Futoshi Matsumoto
(1)
Department of Material and Life Chemistry, Kanagawa University, Yokohama, Japan
Futoshi Matsumoto (Corresponding author)
Email:
Abstract
In this chapter, history of lithium-ion batteries (LIBs) and their problems which should be resolved in future are overviewed. In addition, the problem caused by water which is main part of this book is raised with the reaction occurred with water in LIBs. Finally, the purpose and the content of this book is explained.
Keywords
Water-resistant properties Moisture Lithium salt Hydrogen fluoride Solid-state electrolytes Rechargeable aqueous batteries
In the thirty years since Sony successfully commercialized LIBs in 1991, they have achieved remarkable progress in the area of portable devices, in which these batteries are used as power sources [].
Among the currently commercially available LIBs, invasion of H2O into batteries causes the degradation of battery performance [].