摘要:
Compounds may have general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z′ is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
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.
摘要翻译:电解液包括式I或IA的化合物:其中每个R 1的实例独立地为H,烷基,烷氧基,烯基,芳基,杂芳基或环烷基; R 2的每个实例独立地为H,烷基,烷氧基,烯基,芳基,杂芳基或环烷基; R3的每个实例独立地为H,烷基,烯基,芳基或环烷基; R 4的每个实例独立地为H,卤素,CN,NO 2,磷酸酯,烷基,烯基,芳基,杂芳基或环烷基; x为1,2,3,4或5; y为1或2; z为0,1,2,3或4。
摘要:
A process includes preparing a solution including a silicon precursor or mixture of silicon precursors and a monomer or mixture of monomers; polymerizing the monomer to form a polymer-silicon precursor matrix; and pyrolyzing the polymer-silicon precursor matrix to form an electrochemically active carbon-coated silicon material.
摘要:
A lithium-air cell includes a negative electrode; an air positive electrode; and a non-aqueous electrolyte which includes an anion receptor that may be represented by one or more of the formulas.
摘要:
An electrolyte electrochemical device includes an anodic material and an electrolyte, the electrolyte including an organosilicon solvent, a salt, and a hybrid additiving having a first and a second compound, the hybrid additive configured to form a solid electrolyte interphase film on the anodic material upon application of a potential to the electrochemical device.
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:
A lithium-air battery includes a cathode including a porous active carbon material, a separator, an anode including lithium, and an electrolyte including a lithium salt and polyalkylene glycol ether, where the porous active carbon material is free of a metal-based catalyst.
摘要:
A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material is a lithium molybdenum composite transition metal oxide material and is prepared by mixing in a solid state an intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain the lithium molybdenum composite transition metal oxide cathode material.
摘要:
A process includes preparing a solution including a silicon precursor or mixture of silicon precursors and a monomer or mixture of monomers; polymerizing the monomer to form a polymer-silicon precursor matrix; and pyrolyzing the polymer-silicon precursor matrix to form an electrochemically active carbon-coated silicon material.
摘要:
A method includes modifying a surface of an electrode active material including providing a solution or a suspension of a surface modification agent; providing the electrode active material; preparing a slurry of the solution or suspension of the surface modification agent, the electrode active material, a polymeric binder, and a conductive filler; casting the slurry in a metallic current collector; and drying the cast slurry.