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Associate professor

Supervisor of Master's Candidates

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Education Level:博士研究生

Gender:Male

Degree:工学博士

Discipline:Other specialties in Material Science and Engineering
Material Science

张忠华

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Gender:Male

Education Level:博士研究生

Paper Publications

A Crosslinked Polytetrahydrofuran-Borate-Based Polymer Electrolyte Enabling Wide-Working-Temperature-Range Rechargeable Magnesium Batteries

Key Words:Polyelectrolytes;Crosslinking - Furan resins - Magnesium compounds - Secondary batteries
Abstract:A polymer-based magnesium (Mg) electrolyte is vital for boosting the development of high-safety and flexible Mg batteries by virtue of its enormous advantages, such as significantly improved safety, potentially high energy density, ease of fabrication, and structural flexibility. Herein, a novel polytetrahydrofuran-borate-based gel polymer electrolyte coupling with glass fiber is synthesized via an in situ crosslinking reaction of magnesium borohydride [Mg(BH<inf>4</inf>)<inf>2</inf>] and hydroxyl-terminated polytetrahydrofuran. This gel polymer electrolyte exhibits reversible Mg plating/stripping performance, high Mg-ion conductivity, and remarkable Mg-ion transfer number. The Mo<inf>6</inf>S<inf>8</inf>/Mg batteries assembled with this gel polymer electrolyte not only work well at wide temperature range (−20 to 60 °C) but also display unprecedented improvements in safety issues without suffering from internal short-circuit failure even after a cutting test. This in situ crosslinking approach toward exploiting the Mg-polymer electrolyte provides a promising strategy for achieving large-scale application of Mg-metal batteries.<br/> © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume:31
Issue:11
Translation or Not:no