A wider temperature range polymer electrolyte for all-solid-state lithium ion batteries

High-performance solid polymer electrolytes for lithium batteries operational at ambient temperature

“…Commonly, these strategies are equivalent to significant compromises with the mechanical integrity of the SPE. Examples include low-molecular-weight polymers based on polysiloxane backbones without inherent mechanical stability that require stabilization with poly(vinylidene fluoride) in order to function as a solid separator in working battery cells [37,38].…”

Polymer composites and blends for battery separators: State of the art, challenges and future trends

“…A novel PMHS/PVDF/LiTFSI solid electrolyte for battery applications [239] was developed with the intent of improve PMHS mechanical properties. A battery performance test at room temperature in a LiFePO 4 /PBE/Li cell delivered specific discharge capacity higher than 145 mAh/g at the initial cycle when using a low current density of 0.2 C. Further, the surface of PE membranes through plasma induced acrylonitrile coating has been also presented [242].…”

Solid Polymer Electrolytes Based on Functionalized Tannic Acids from Natural Resources for All‐Solid‐State Lithium‐Ion Batteries

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Solid polymer electrolytes (SPEs) for all-solid-state lithium-ion batteries are prepared by simple one-pot polymerization induced by ultraviolet (UV) light using poly(ethylene glycol) methyl ether methacrylate(PEGMA) as an ion-conducting monomeric unit and tannic acid( TA)-based crosslinking agent and plasticizer.T he crosslinking agent and plasticizer based on natural resources are obtainedf rom the reaction of TA with glycidyl methacrylate and glycidyl poly(ethylene glycol), respectively.D imensionally stable free-standing SPE having al arge ionic conductivity of 5.6 10 À4 Scm À1 at room temperature can be obtained by the polymerization of PEGMA into P(PEGMA) with av ery small amount (0.1 wt %) of the crosslinking agent and 2.0 wt %o ft he plasticizer.T he ionic conductivity value of SPE with ac rosslinked structure is one order of magnitude larger than that of linear P(PEGMA) in the waxy state.

Solid polymer electrolytes (SPEs) for all-solid-state lithium-ion batteries have received considerable attention during the last severald ecades because of their superior safetya th igh temperatures, compared to liquid electrolytes. [4] To develop SPEs as an alternative for both separator and liquid electrolytes, poly(ethylene oxide) (PEO)-based polymerm aterials have been extensively studied because ethylene oxide groups can conductl ithium ions. [4] To develop SPEs as an alternative for both separator and liquid electrolytes, poly(ethylene oxide) (PEO)-based polymerm aterials have been extensively studied because ethylene oxide groups can conductl ithium ions.

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