Aqueous Additive for Lithium Ion Batteries: Promotes Novel Solid Electrolyte Interface (SEI) Layer with Overall Cost Reduction

作者：Cheng Chin Shu^*; Wang Fu Ming; Rick John

来源：International Journal of Electrochemical Science, 2012, 7(9): 8676-8687.

• Lithium ion battery
• additive
• water
• solid electrolyte interface
• maleimide

A novel technology, easily incorporated into the manufacturing process for lithium ion batteries, offers the prospect of significant performance improvements. Applying this technology, the manufacturing process can result in batteries with increased energy densities, which are able to supply markets where high energy/power requirements are demanded, such as in electric vehicles (EV). In this research, we show a moisture curing reaction mechanism, in which maleimide (MI) reacts with water and a lithium salt to form a temperature stable (55 degrees C) three-dimensional nano tunnel in the solid electrolyte interface (SEI) on the carbon anode%26apos;s surface, can be used for both performance enhancement and cost reduction. By using this binary additive (MI/H2O), lithium ion batteries not only obtain a higher energy density, but their attendant manufacturing costs in terms of dry room electric power consumption and the storage costs associated with aging after manufacture are significantly reduced.

• 出版日期2012-9
• 单位清华大学