Effects of preparation conditions on porous polymer membranes by microwave assisted effervescent disintegrable reaction and their electrochemical properties

• Published in: Journal of membrane science 2010-10, Vol.362 (1), p.113-118
• Main Authors: Zhang, P., Yang, L.C., Li, L., Qu, Q.T., Wu, Y.P., Shimizu, M.
• Format: Article
• Language: English
• Subjects: Effervescent disintegrable reaction; Lithium ion batteries; Microwave; Porous polymer electrolyte; Porous polymer membranes
• ISSN: 0376-7388; 1873-3123
• DOI: 10.1016/j.memsci.2010.06.024

[Display omitted] ▶ Safety of lithium ion batteries is closely related to electrolytes. ▶ Polymer electrolytes can greatly solve the safety issue. ▶ Costs to produce polymer electrolyte are key issues for commercial application. ▶ Microwave assisted effervescent disintegrable reaction is an effective and practical method. Effects of different reaction conditions such as temperature, time and amount of the added effervescent disintegrant on the porous structures of the porous polymer membranes prepared by microwave assisted effervescent disintegrable reaction between citric acid and sodium bicarbonate were investigated. Shorter reaction time at higher temperature is beneficial to higher porosity of the membrane. The ionic conductivity of the prepared porous polymer electrolytes based on the porous polymer membranes is up to 1.17 × 10 −3 S/cm and their electrochemical window is above 5 V. This method is convenient and will greatly promote the practical application of porous polymer membranes in various areas.