| 摘要 |
The disclosure relates to asymmetric supercapacitors containing: a positive electrode comprising a current collector and a first active material selected from a layered double hydroxide of formula [M2+1-xMx3+(OH)2]An-x/n.mH2O where M2+ is at least one divalent metal, M3+ is at least one trivalent metal and A is an anion of charge n-, where x is greater than zero and less than 1, n is 1, 2, 3 or 4 and m is 0 to 10; LiCoO2; LiCoxNiyO2 where x and y are greater than zero and less than 1; LiCoxNiyMn(1-x-y)O2 where x and y are greater than zero and less than 1; CoSx where x is from 1 to 1.5; MoS; Zn; activated carbon and graphite; a negative electrode containing a material selected from a carbonaceous active material, MoO3 and Li1xMoO6-x/2; an aqueous electrolyte solution or a non-aqueous ionic conducting electrolyte solution containing a salt and a salt and a non-aqueous solution; and a separator plate. Alternatively, the electrolyte can be a solid electrolyte.
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