| 摘要 |
A separator for zinc electrode-based cells that is effective in preventing dendrite growth in a zinc rechargeable cell is prepared as A standalone membrane, or as a composite membrane by impregnating the membrane into a nonwoven fabric. Interpenetrating polymer networks are employed by combining two different polymers. The two polymers penetrate each other on a molecular scale so that mechanical strength, water content and conductivity of the membranes can be effectively optimized. Since the water content of membrane can be optimized by introducing high water content polymers other than polyvinyl alcohol, wherein the diffusion of water from the separator membrane when the membrane contacts alkaline electrolyte solution can be largely reduced. Such membranes demonstrate excellent dendrite blocking capability in a practical zinc rechargeable cell.
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