Details

Autor(en) / Beteiligte

• Ma, Longli
• Jin, Mengyuan
• Yan, Chaojing
• Guo, Hao
• Ma, Xiaohua

Titel

Gel Polymer Electrolyte with Anion‐Trapping Boron Moieties via One‐Step Synthesis for Symmetrical Supercapacitors

Ist Teil von

• Macromolecular materials and engineering, 2020-07, Vol.305 (7), p.n/a

Ort / Verlag

Weinheim: John Wiley & Sons, Inc

Erscheinungsjahr

2020

Quelle

Wiley Online Library

Beschreibungen/Notizen

• A novel gel polymer electrolyte (GPE) which is based on new synthesized boron‐containing monomer, benzyl methacrylate, 1 m LiClO4/N,N‐dimethylformamidel liquid electrolyte solution is prepared through a one‐step synthesis method. The boron‐containing GPE (B‐GPE) not only displays excellent mechanical behavior, favorable thermal stability, but also exhibits an outstanding ionic conductivity of 2.33 mS cm−1 at room temperature owing to the presence of anion‐trapping boron sites. The lithium ion transference in this gel polymer film at ambient temperature is 0.60. Furthermore, the symmetrical supercapacitor which is fabricated with B‐GPE as electrolyte and reduced graphene oxide as electrode demonstrates a broad potential window of 2.3 V. The specific capacitance of symmetrical B‐GPE supercapacitors retains 90% after 3000 charge–discharge cycles at current density of 1 A g−1. A symmetric supercapacitor, assembled by a boron‐containing gel polymer electrolyte (B‐GPE) and a reduced graphene oxide as electrode, exhibits good electrochemical performance in specific capacitance and cycling stability owing to the presence of anion‐trapping boron sites in B‐GPE, synthesized by a one‐step synthesis method by the aid of the thermal‐induced radical copolymerization.