Thermal Property Enhancement of Lithium-ion Battery Membrane Separator Coated with Nanomaterials.

• Main Authors: Yu-Ting Hu, 胡毓庭
• Other Authors: Jui-Chin Chen
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/06809366057820199119

碩士 === 亞東技術學院 === 纖維與材料應用產業研發碩士專班 === 103 === As technology has advanced, miniaturized electronic products have become dominant in the market. Although battery sizes have been reduced, the demand for large battery capacity increases. Battery explosions have frequently occurred in recent years, primarily because thermal runaway can occur on the battery separator, causing short circuits and explosions. Such explosions occur during the power generation process, and are caused by the mechanical failure of separators that have undergone nanocoating and surface treatment; thus, examining this phenomenon is crucial. Relevant studies were reviewed that detailed the explosions resulting from static electricity or friction in batteries in which various nanomaterials were integrated with nonwoven fabrics. Common metal powders such as Ag, Au, Pt, Cu, Fe, and Zn were investigated in this study in addition to the novel nanomaterial graphene and its derivatives, which have been prevalently applied in recently developed battery electrodes. Moreover, because the upper and lower explosive limits of the evaluated materials are influenced by humidity, various humidity levels were applied to examine the explosions in batteries after nanomaterials were integrated with nonwoven fabrics. The findings should serve as a crucial reference regarding industrial safety in nanopractical production plants.