摘要:
Laves phase-related BCC metal hydride alloys historically have limited electrochemical capabilities. Provided are a new examples of these alloys useful as electrode active materials. Also provided are processes of activating such alloys. Alloys include a composition defined by Formula I: TiwVxCryMz (I) where w+x+y+z = 1, 0.1
摘要翻译:Laves相相关的BCC金属氢化物合金在历史上限定的电化学功能。 本发明提供作为电极活性物质有用的合成合金的一个新实施例。 所以提供了激活检查合金的过程。 合金包括由通式定义的组合物I:TiwVxCryMz(I)其中w + X + Y + Z = 1,0.1
摘要:
Lithiated composite materials and methods of manufacture are provided that are capable of imparting excellent capacity and greatly improved cycle life in lithium-ion secondary cells. By supplementing a high nickel content lithium storage material with a transition metal oxide lithium storage material or a dopant at relatively low levels, the capacity of the high nickel content lithium storage materials is maintained while cycle life is dramatically improved. These characteristics are promoted by methods of producing the materials that intermix unlithiated precursor materials with a lithium source and sintering the materials together in a single sintering reaction. The resulting lithiated composite materials provide for the first time both high capacity and excellent cycle life to predominantly high nickel content electrodes.
摘要:
A solid state battery including at least one multilayered battery cell comprising: 1) a layer of negative electrode material; 2) a layer of positive electrode material; and 3) a layer of perovskite-type oxide material disposed between the layer of positive electrode material and the layer of negative electrode material, where said layer of perovskite-type oxide material is electrically insulating and capable of readily conducting or transporting protons.
摘要:
A supported catalytic material including multiple mixed-valence nanoclustered metal or metal oxide catalytic layers or regions and/or multiple organometallic catalytic layers. The supported catalytic material may include two or more compositionally-distinct mixed-valence nanoclustered metal or metal oxide layers or regions arranged as layers or discrete regions. The mixed-valence regions or layers may include two or more metals in two or more oxidation states. The supported catalytic material may also include two or more compositionally- distinct organometallic regions or layers, where the layers or regions differ with respect to the chemical identity of the metal and/or ligands to which the metal is coordinated.
摘要:
A method for converting nickel into a nickel salt solution. Nickel is dissolved and reacted in an oxygen-enriched acidic solution to produce a nickel salt solution as illustrated in the following chemical equation, wherein X is a conjugate base of the representative acid H2X: Ni + H2X + Yz O2 -> NiX + H2O.
摘要:
High capacity, long cycle life positive electrode modified nickel hydroxide material for use in an alkaline rechargeable electrochemical cell at least one modifier and has modified activation energy, chemical potential and electrical conductivity. Particle size, particle size distribution, electrical conductivity have been controlled by introducing modifier elements throughout the bulk of the active material and by controlling process parameters.
摘要:
A hybrid electric vehicle drive system comprising a combustion engine (79), an electric motor (76) and at least one nickel-metal hybride battery module (75) forming a power source for providing electric power to the electric motor (76), the at least one nickel-metal hybride battery module having a peak power density in relation to energy density as defined by : P > 1 , 420 - 16 E where P is the peak power density as measured in Watts/kilogram and E is the energy density as measured in Watt-hours/kilogram.