摘要:
A negative electrode alloy material including no noble metals, and having a high discharge capacity at high discharge rates. The alloy comprises in atomic percentage, 15-19 % Zr, 14-18 % Ti, 8-12 % V, 6-10 % Cr, 16-20 % Mn, and 28-33 % Ni.
摘要:
A rechargeable aqueous electrolyte lithium-hydrogen ion battery. The electrodes of the lithium-hydrogen battery electrode are formed from materials which reversibly intercalate both lithium and hydrogen ions. These materials can be represented by the general formula LixHy(HOST), wherein HOST represents intercalation host matrices for said electrodes into which guest Li and H ions can be inserted, and x and y are the intercalation stoichiometries of lithium and hydrogen, respectively. Preferably, the intercalation host matrices of the electrodes are chosen from the group consisting of NiO2, CoO2, Mn2O4, MnO2, VO2, V2O5, TiS2, MoS2, MoO2, WO3, graphite, and electrochemical hydrogen storage metal alloy materials. Particularly useful combinations of host matrices are Mn2O4 with VO2 or an electrochemical hydrogen storage metal alloy material and NiO2 with graphite or an electrochemical hydrogen storage metal alloy material.
摘要:
A high capacity, long cycle life positive electrode for use in an alkaline rechargeable electrochemical cell comprising: a solid solution nickel hydroxide material having a multiphase structure that comprises at least one polycrystalline η-phase including a polycrystalline η-phase unit cell comprising spacedly disposed plates with at least one chemical modifier incorporated around the plates, the plates having a range of stable intersheet distances corresponding to a 2+ oxidation state and a 3.5+, or greater, oxidation state; and at least one compositional modifier incorporated into the solid solution nickel hydroxide material to promote the multiphase structure.
摘要:
A positive electrode active material mixture comprising: a nickel hydroxide material, and an additive material comprising at least one element selected from the group consisting of calcium cobalt oxide, calcium titanium oxide, calcium molybdenum oxide, lithium cobalt oxide, and mixtures thereof. A nickel positive electrode comprising this active material mixture. A nickel-based, alkaline electrochemical cell comprising this positive electrode.
摘要:
A multi-chambered deposition apparatus for depositing solid-state, thin-film battery materials onto substrate material. The apparatus minimally includes at least three distinct evacuable deposition chambers (8, 9, 10), which are physically interconnected in series. The first deposition chamber (8) is adapted to deposit a layer of battery electrode material having a first polarity onto the substrate. The second deposition chamber (9) is adapted to deposit a layer of solid-state electrolyte material onto the layer of battery electrode material deposited in the first chamber (8). The third deposition chamber (10) is adapted to deposit a layer of battery electrode material having an opposite polarity from that deposited in the first chamber (8) onto the solid-state electrolyte. The deposition chambers (8, 9, 10) are interconnected by gas gates (12) such that the substrate material is allowed to proceed from one deposition chamber to the next, while maintaining gaseous segragation between the chambers.
摘要:
A positive electrode active material mixture comprising: a nickel hydroxide material, and an additive material comprising at least one element selected from the group consisting of calcium cobalt oxide, calcium titanium oxide, calcium molybdenum oxide, lithium cobalt oxide, and mixtures thereof. A nickel positive electrode comprising this active material mixture. A nickel-based, alkaline electrochemical cell comprising this positive electrode.