Abstract:
An asymmetric electrochemical capacitor positive electrode composition including activated carbon and an electrolyte salt which is a reaction product of an alkali metal halide and an aluminum halide is provided. Asymmetric electrochemical capacitor cells and energy storage devices comprising the asymmetric electrochemical capacitor positive electrode composition are also provided.
Abstract:
A cathode composition is described that includes a first element selected from nickel or cobalt; a second element M selected from iron or cobalt, wherein said second element M is contained within a sulfide composition MxSy, wherein the ratio of x and y is between 0.5:1 and 1.5:1; at least one first alkali metal halide; and an electrolyte salt comprising a second alkali metal halide and a metal halide, wherein the electrolyte salt has a melting point in a range from about 150° C. to about 300° C. The molar ratio of the first element to the sulfur of the sulfide composition is between 1.5:1 and 50:1. An energy storage device comprising the cathode composition is also disclosed.
Abstract translation:描述了包括选自镍或钴的第一元素的阴极组合物; 选自铁或钴的第二元素M,其中所述第二元素M包含在硫化物组合物M x S y内,其中x和y的比率为0.5:1至1.5:1; 至少一种第一碱金属卤化物; 以及包含第二碱金属卤化物和金属卤化物的电解质盐,其中电解质盐的熔点在约150℃至约300℃的范围内。第一元素与硫的摩尔比为 硫化物组成在1.5:1和50:1之间。 还公开了包含阴极组合物的能量存储装置。