Journal ArticleDOI
Self-Healing Solid Polymer Electrolyte for Room-Temperature Solid-State Lithium Metal Batteries.
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TLDR
Li et al. as discussed by the authors designed and synthesized a PEO-based self-healing solid polymer electrolyte via dynamically cross-linked imine bonds for safe, flexible solid LMBs.Abstract:
Poor room-temperature ionic conductivities and narrow electrochemical stable windows severely hinder the application of conventional poly(ethylene oxide)-based (PEO-based) solid polymer electrolytes (SPEs) for high-energy-density lithium metal batteries (LMBs). Herein, we designed and synthesized a PEO-based self-healing solid polymer electrolyte (SHSPE) via dynamically cross-linked imine bonds for safe, flexible solid LMBs. The constructed dynamic networks endow this SPE with fascinating intrinsic self-healing ability and excellent mechanical properties (extensibility > 500% and stress >130 kPa). More importantly, this SHSPE exhibits ultrahigh ionic conductivity (7.48 × 10-4 S cm-1 at 25 °C) and wide ESW (5.0 V vs Li/Li+). As a result, Li||Li symmetrical cells with the SHSPE showed reliable stability in a >1200 h cycling test under room temperature. The assembled Li|SHSPE|LiFePO4 cell maintained a discharge capacity of 126.4 mAh g-1 after 300 cycles (0.1C, 27 °C). This work highlights a promising strategy for next-generation room-temperature solid-state LMBs.read more
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Journal ArticleDOI
Opportunities of Flexible and Portable Electrochemical Devices for Energy Storage: Expanding the Spotlight onto Semi-solid/Solid Electrolytes.
Xiayue Fan,Cheng Zhong,Jie Liu,Jia Ding,Yida Deng,Xiaopeng Han,Lei Zhang,Wenbin Hu,David P. Wilkinson,Jiujun Zhang +9 more
TL;DR: In this paper , the authors provide a comprehensive cross-technology understanding of the semi-solid/solid electrolytes for facilitating their current and future researches on the flexible and portable electrochemical energy devices.
Journal ArticleDOI
A review of self-healing electrolyte and their applications in flexible/stretchable energy storage devices
TL;DR: In this article , a full scheme for flexible/stretchable energy storage devices and the basic principle of self-healing is presented. But, as a result of repetitive fatigue deformation accompanied by electrochemical depletion process, the electrolyte in these devices may sustain varying degrees of damage, including cracks, fissures, punctures and encrustations, which can lead to serious performance degradation or even safety issues.
Journal ArticleDOI
Self-Healable, Highly Stretchable, Ionic Conducting Polymers as Efficient Protecting Layers for Stable Lithium-Metal Electrodes.
Feiyuan Sun,Zhenxi Li,Shilun Gao,Yayue He,Jiancheng Luo,Xiao Zhao,Dandan Yang,Tao Gao,Huabin Yang,Peng Cao +9 more
TL;DR: In this paper , a self-healing polymers that enables the long-term operation of Li-metal batteries (LMBs) at relatively low temperatures has been demonstrated, where a highly stretchable, autonomous selfhealable, and ionic-conducting polymer network (SHIPN) is synthesized as an efficient protective film for LMBs.
Journal ArticleDOI
Highly conductive self-healing polymer electrolytes based on synergetic dynamic bonds for highly safe lithium metal batteries
TL;DR: Li et al. as mentioned in this paper developed a self-healing polymer electrolyte (IBshPE), which is crosslinked by synergetic dynamic imine bond and boroxine bond via the reaction of 2-formylphenylboronic acid and poly(ethylene glycol) diamine.
Journal ArticleDOI
Ultrathin Solid Polymer Electrolyte Design for High‐Performance Li Metal Batteries: A Perspective of Synthetic Chemistry
Qian Wang,Shi-chao Wang,Tiantian Lu,Lixiang Guan,Lifeng Hou,Huayun Du,Huan Wei,Xiaodao Liu,Yin Wei,Henghui Zhou +9 more
TL;DR: In this article , the authors mainly focus on evaluating the merits of ultrathin solid polymer electrolyte (SPE) and summarizing its existing challenges as well as fundamental requirements for designing and manufacturing advanced ultrathIN SPE in the future.
References
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TL;DR: In this article, a review of the recent developments and issues concerning polyethylene oxide (PEO) based electrolytes for lithium-ion batteries is presented, including blending, modifying and making PEO derivatives.
Journal ArticleDOI
Self-healing polymeric materials: A review of recent developments
TL;DR: An overview of various self-healing concepts for polymeric materials published over the last 15 years is presented in this article, where Fracture mechanics of polymeric material and traditional methods of repairing damages in these materials are described to provide context for the topic.