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In Situ Formation of Polysulfonamide Supported Poly(ethylene glycol) Divinyl Ether Based Polymer Electrolyte toward Monolithic Sodium Ion Batteries
Author(s) -
Zhang Jianjun,
Wen Huijie,
Yue Liping,
Chai Jingchao,
Ma Jun,
Hu Pu,
Ding Guoliang,
Wang Qingfu,
Liu Zhihong,
Cui Guanglei,
Chen Liquan
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201601530
Subject(s) - electrolyte , materials science , ethylene glycol , battery (electricity) , anode , electrochemistry , polymer , ionic conductivity , chemical engineering , sodium ion battery , sodium , electrode , chemistry , composite material , metallurgy , power (physics) , physics , quantum mechanics , faraday efficiency , engineering
Sodium ion battery is one of the promising rechargeable batteries due to the low‐cost and abundant sodium sources. In this work, a monolithic sodium ion battery based on a Na 3 V 2 (PO 4 ) 3 cathode, MoS 2 layered anode, and polyether‐based polymer electrolyte is reported. In addition, a new kind of polysulfonamide‐supported poly(ethylene glycol) divinyl ether based polymer electrolyte is also demonstrated for monolithic sodium ion battery via in situ preparation. The resultant polymer electrolyte exhibits relatively high ionic conductivity (1.2 mS cm −1 ) at ambient temperature, wide electrochemical window (4.7 V), and favorable mechanical strength (25 MPa). Moreover, such a monolithic Na 3 V 2 (PO 4 ) 3 /MoS 2 sodium ion battery using this polymer electrolyte delivers outstanding rate capability (up to 10 C) and superior cyclic stability (84%) after 1000 cycles at 0.5 C. What is more essential, such a polymer electrolyte based soft‐package monolithic sodium ion cell can still power a red light emitting diode lamp and run finite times without suffering from any internal short‐circuit failures, even in the case of a bended and wrinkled state. Considering these aspects, this work no doubt provides a new approach for the design of a high‐performance polymer electrolyte toward monolithic sodium ion battery with exceptional rate capability and high safety.