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    • 10. 发明授权
    • Stability enhancing additive for electrochemical devices
    • 用于电化学装置的稳定性增强添加剂
    • US09536678B2
    • 2017-01-03
    • US14317718
    • 2014-06-27
    • Ioxus, Inc.
    • George LaneKen Rudisuela
    • H01G11/60H01G11/84H01G11/64
    • H01G11/60H01G11/64H01G11/84Y02E60/13Y02T10/7022Y10T29/417
    • Embodiments described herein relate generally to electric double layer capacitors having an electrolyte formulation that includes a quantity of a stabilizing additive such that the electrochemical double layer capacitors retain cell capacitance for longer periods of time, generate less gas during operation, and experience less long term ESR. In some embodiments, an electrolyte formulation includes an ionic species, a solvent, and a stabilizer. In some embodiments the stabilizer contains a moiety that promotes adsorption to a surface, such as a carbon surface, and a moiety that promotes polarity of the stabilizer. In some embodiments, the solvent can be a nitrile compound and the stabilizer can be a compound of the formula I: Such that R is H, saturated or unsaturated, linear or branched, acyclic carbon group, OH, halogen NH2, NO2, S(O)2CF3, or monocyclic or polycyclic aryl, and n is an integer from 0 to 5.
    • 本文所述的实施方案大体上涉及具有电解质配方的电双层电容器,其包含一定量的稳定添加剂,使得电化学双层电容器保持更长时间段的电池电容,在运行期间产生更少的气体,并且经历较少的长期ESR 。 在一些实施方案中,电解质制剂包括离子种类,溶剂和稳定剂。 在一些实施方案中,稳定剂含有促进对表面(例如碳​​表面)的吸附的部分和促进稳定剂极性的部分。 在一些实施方案中,溶剂可以是腈化合物,并且稳定剂可以是式I的化合物:这样R是H,饱和或不饱和的直链或支链的无环碳基,OH,卤素NH 2,NO 2(SO )2CF 3,或单环或多环芳基,n为0至5的整数。