A self-designed double cross-linked gel for flexible zinc-air battery with extreme conditions adaptability

Construction of Alkaline Gel Polymer Electrolytes with a Double Cross-Linked Network for Flexible Zinc–Air Batteries

“…Moreover, the water-retention capacity of the polyelectrolyte over time was explored. The water loss reduces ion conductivity, resulting in battery performance or life degradation . All AGPEs were wrapped by a thermoplastic film with holes and exposed to a simulated working environment at 25 °C, 30 RH%.…”

“…and organic polysaccharides (cellulose, , starch , ) are filled in the preparation of AGPE to improve the overall performance through their surface chemistry characteristics. In addition, the optimization of AGPE through structural design is another focus of the research topic, such as the cocontinuous structure, double network (DN), , or interpenetrating polymer network (IPN) . The former approach can fill in the gaps to some extent but will not change the essence of polymers, while the latter is capable of combining the intriguing advantages of different gels according to the desired properties, showing exceptional attractiveness.…”

Enhanced Copolymer Gel Modified by Dual Surfactants for Flexible Zinc–Air Batteries

“…The precursor solution of PAM was prepared according to our previous study. 21 Then 0.5 g of pluronic F127 (Pluronic F-127, Sigma-P2443) and 2 mL of GO (Suzhou Hengqiu Technology Co., LTD; 10 mg mL −1 ) were added into the mixed liquids and stirred magnetically for 1 h until the solution changed into a uniform brown mixture. The homogenized solution was gelated by heating polymerization reaction in an incubator.…”

“…19,20 In addition, the environmental adaptability of traditional gel electrolytes is generally weak. 21 The water dissipation or freezing in the gel matrix is particularly serious, which will not only lead to the degradation of electrochemical performance but also affect the normal operation of gel-based equipment. 22,23 According to previous studies, additives with specific functions such as inorganic salts, glycerol, and ethylene glycol are added to the prepared precursor solution of the gel polymer to enhance the water retention and freezing resistance of the gel in the environment, but it has little effect on the improvement of mechanical and electrochemical properties.…”

“…In addition, the environmental adaptability of traditional gel electrolytes is generally weak . The water dissipation or freezing in the gel matrix is particularly serious, which will not only lead to the degradation of electrochemical performance but also affect the normal operation of gel-based equipment. , According to previous studies, additives with specific functions such as inorganic salts, glycerol, and ethylene glycol are added to the prepared precursor solution of the gel polymer to enhance the water retention and freezing resistance of the gel in the environment, but it has little effect on the improvement of mechanical and electrochemical properties. , Moreover, graphene oxide (GO) as an additive is remarkable in improving the mechanical strength and electrochemical characteristics of gel electrolytes. , The introduction of modifiers is an effective way for optimizing the overall quality of quasi-solid electrolytes and gel-based batteries. , The triblock polymer pluronic F127 has also been applied in flexible zinc–air batteries as gel electrolytes. , Although the research on GO and pluronic F127 as modifiers has made staged achievements, little progress has been made in the joint application of these two surfactants.…”