Chen, Pingping; Liu, Xu; Wang, Shi; Zeng, Qinghui; Wang, Zhinan; Li, Zengxi; Zhang, Liaoyun published the artcile< Confining Hyperbranched Star Poly(ethylene oxide)-Based Polymer into a 3D Interpenetrating Network for a High-Performance All-Solid-State Polymer Electrolyte>, Name: 1-(Chloromethyl)-4-vinylbenzene, the main research area is hyperbranched star PEO interpenetrating network solid polymer battery electrolyte; solid lithium battery electrolyte PEO polystyrene nanoconfinement crosslinking; 3D rigid framework; all-solid-state polymer electrolyte; hyperbranched star polymer; lithium-ion battery; nanoconfinement.
The original poly(ethylene oxide)-based polymer electrolytes normally show low ionic conductivity and inferior mech. property, which greatly restrict their practical application in all-solid-state lithium-ion batteries (LIBs). In this work, a hyperbranched star polymer with poly(ethylene glycol) Me ether methacrylate flexible chain segments is embedded into a three-dimensional (3D) interpenetrating crosslinking network created by the rapid one-step UV-derived photopolymerization of the cross-linker (ethoxylated trimethylolpropane triacrylate) in the presence of lithium salt. The rigid 3D network framework provides the polymer electrolyte with not only enhanced mech. behavior, including film-forming and dendrite-inhibiting capabilities, but also nanoconfinement effects, which can speed up polymer chain segmental dynamics and reduce the crystallinity of the polymer. Depending on this unique rigid-flexible coupling network, the prepared solid polymer electrolyte shows enhanced ionic conductivity (6.8 × 10-5 S cm-1 at 50 °C), widened electrochem. stability window (5.1 V vs Li/Li+), and enough mech. stability to suppress the growth of uneven Li dendrite (the Li sym. cells can operate steadily at both current densities of 0.05 and 0.1 mA cm-2 for 1000 h). Moreover, the assembled LiFePO4//Li cell also exhibited good cycle performance at 50 °C, making the hyperbranched star polymer electrolyte with a nanoconfined crosslinking structure to have potential application in high-safety and high-performance LIBs.
ACS Applied Materials & Interfaces published new progress about Activation energy. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Name: 1-(Chloromethyl)-4-vinylbenzene.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics