摘要:
Disclosed is an improved solid electrolyte made of an interpenetrating network type solid polymer comprised of two compatible phases: a crosslinked polymer for mechanical strength and chemical stability, and an ionic conducting phase. The highly branched siloxane polymer of the present invention has one or more poly(ethylene oxide) (“PEO”) groups as a side chain. The PEO group is directly grafted to silicon atoms in the siloxane polymer. This kind of branched type siloxane polymer is stably anchored in the network structure and provides continuous conducting paths in all directions throughout the IPN solid polymer electrolyte. Also disclosed is a method of making an electrochemical cell incorporating the electrolyte. A cell made accordingly has an extremely high cycle life and electrochemical stability.
摘要:
Lithium compound and nickel oxyhydroxide containing a transition metal (Me) such as V, Cr, Mn, Fe, Zn and Co are suspended in water or in an organic solvent, and the solution is reacted with each other in an autoclave by a hydrothermal method to thereby synthesize transition metal-containing lithium nickelate.
摘要:
A negative active material for lithium secondary battery contains a tin oxyhydroxide or a complex oxyhydroxide of tin and other elements such as Mg, Ca, Ni, Mn, V, Ti, Pb, Al, Ge, As, Si and/or Sb.
摘要:
An electro lye includes a compound of Formula I or IA: where each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R3 is independently H, alkyl, alkenyl, aryl, or cycloalkyl; each instance of R4 is independently H, halogen, CN, NO2, phosphate, alkyl, alkenyl, aryl, heteroaryl, or cycloalkyl; x is 1, 2, 3, 4, or 5; y is 1 or 2; and z is 0, 1, 2, 3, or 4.
摘要:
The invention provides a method for generating Li2O2 or composites of it, the method uses mixing lithium ions with oxygen ions in the presence of a catalyst. The catalyst comprises a plurality of metal clusters, their alloys and mixtures, each cluster consisting of between 3 and 18 metal atoms. The invention also describes a lithium-air battery which uses a lithium metal anode, and a cathode opposing the anode. The cathode supports metal clusters, each cluster consisting of size selected clusters, taken from a range of between approximately 3 and approximately 18 metal atoms, and an electrolyte positioned between the anode and the cathode.
摘要翻译:本发明提供了一种生成Li 2 O 2或其复合物的方法,该方法在催化剂存在下使用锂离子与氧离子混合。 催化剂包括多个金属簇,它们的合金和混合物,每个簇由3至18个金属原子组成。 本发明还描述了使用锂金属阳极和与阳极相对的阴极的锂空气电池。 阴极支撑金属簇,每个簇由尺寸选定的簇组成,取自大约3至大约18个金属原子之间的范围,以及位于阳极和阴极之间的电解质。
摘要:
A lithium-air battery includes a lithium anode; an air cathode; and a separator between the lithium anode and an air cathode the separator including a cross-linked polysiloxane.
摘要:
An electrolyte includes an alkali metal salt; an aprotic solvent; and a redox shuttle additive including an aromatic compound having at least one aromatic ring fused with at least one non-aromatic ring, the aromatic ring having two or more oxygen or phosphorus-containing substituents.
摘要:
An electrolyte includes a polar aprotic solvent; an alkali metal salt; and an electrode stabilizing compound that is a monomer, which when polymerized forms an electrically conductive polymer. The electrode stabilizing compound is a thiophene, a imidazole, a anilines, a benzene, a azulene, a carbazole, or a thiol. Electrochemical devices may incorporate such electrolytes.