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| 1 | A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes显示文摘Thermal runaway has been a long-standing safety issue impeding the development of high-energydensity batteries. Physical safety designs such as employing circuit-breakers and fuses to batteries are limited by small operating voltage windows and no resumption of original working condition when it is cooled down. Here we report a smart thermoresponsive polymer electrolyte that can be incorporated inside batteries to prevent thermal runaway via a fast and reversible sol-gel transition, and successfully combine this smart electrolyte with a rechargeable Zn/a-MnO_2 battery system. At high temperature, battery operation is inhibited as a result of the increased internal resistance caused by the gelation of liquid electrolyte. After cooling down, the electrolyte is spontaneously reversed to sol state and the electrochemical performance of the battery is restored. More importantly, sol-gel transition enables the smart battery to experience different charge-discharge rates under various temperature levels, providing a smart and active strategy to achieve dynamic and reversible self-protection. | Funian Mo Hongfei Li Zengxia Pei Guojin Liang Longtao Ma Qi Yang Donghong Wang Yan Huang Chunyi Zhi | 2018 | Science Bulletin2018，63，16： | 13 |
| 2 | Recent Progress of MXene-Based Nanomaterials in Flexible Energy Storage and Electronic Devices显示文摘The increasing demands for wearable electronics have stimulated the rapid development of flexible energy storage devices.MXenes are considered as promising flexible electrodes due to the ultrahigh volumetric specific capacitance,metallic conductivity,superior hydrophily,and rich surface chemistry. | Qi Yang Yukun Wang Xinliang Li Hongfei Li Zifeng Wang Zijie Tang Longtao Ma Funian Mo Chunyi Zhi | 2018 | Energy & Environmental Materials2018，1，4： | 8 |
| 3 | Self-healable electroluminescent devices显示文摘Electroluminescent(EL)devices have been extensively integrated into multi-functionalized electronic systems in the role of the vitally constituent light-emitting part.However,the lifetime and reliability of EL devices are often severely restricted by concomitant damage,especially when the strain exceeds the mechanical withstanding limit.We report a self-healable EL device by adopting a modified self-healable polyacrylic acid hydrogel as the electrode and a selfhealable polyurethane as a phosphor host to realize the first omni-layer-healable light-emitting device.The physicochemical properties of each functionalized layer can be efficiently restored after experiencing substantial catastrophic damage.As a result,the luminescent performance of the self-healable EL devices is well recovered with a high healing efficiency(83.2%for 10 healing cycles at unfixed spots,and 57.7%for 20 healing cycles at a fixed spot).In addition,inter-device healing has also been developed to realize a conceptual“LEGO”-like assembly process at the device level for light-emitting devices.The design and realization of the self-healable EL devices may revive their performance and expand their lifetime even after undergoing a deadly cut.Our self-healable EL devices may serve as model systems for electroluminescent applications of the recently developed ionically conductive healable hydrogels and dielectric polymers. | Guojin Liang Zhuoxin Liu Funian Mo Zijie Tang Hongfei Li Zifeng Wang Venkateshwarlu Sarangi Abhijit Pramanick Jun Fan Chunyi Zhi | 2018 | Light(Science & Applications)2018，7，1： | 0 |
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