About 94 results
https://drivepatents.com/patents/1001913 · 30 May 2012
Preparing precursors for transition metal mixed oxides, comprises: (a1) precipitating a material comprising metal oxide compounds (I) from aqueous solution at a pH value of 8-9, where the total concentration of the transition metals in the mother liquor is...
https://drivepatents.com/patents/1001905 · 30 May 2012
Producing a precursor comprises (a) thermally treating an optionally basic transition metal carbonate at 200-900[deg] C, (b) washing at least once, and (c) drying. An independent claim is also included for the precursor, which is obtained by the above ment...
https://drivepatents.com/patents/1003443 · 18 Apr 2012
A bipolar plate comprises: a first corrosion resistant layer having a plurality of vias formed therein, each via extending through the first corrosion resistant layer and being filled with an electrically conductive, corrosion resistant material; a second ...
https://drivepatents.com/patents/1003638 · 4 Apr 2012
A cathode, a method of forming the cathode and a lithium battery including the cathode. The cathode includes a current collector and a cathode active material layer disposed on the current collector; the cathode active material layer includes a lithium tra...
https://drivepatents.com/patents/1006156 · 18 Jan 2012
A process is provided, process which makes it possible to produce lithium-borate-system materials by means of relatively simple means, lithium-borate-system materials which are useful as positive-electrode active materials for lithium-ion secondary battery...
https://drivepatents.com/patents/1008657 · 19 Oct 2011
The present invention is directed to nanowire structures and interconnected nanowire networks comprising such structures, as well as methods for their production. The nanowire structures comprise a nanowire core, a carbon-based layer, and in additional emb...
https://drivepatents.com/patents/1009152 · 5 Oct 2011
Alkaline batteries are disclosed that advantageously include separators comprising at least one porous layer of fine fibers having a diameter of between about 50 nm and about 3000 nm that provide improved combinations of reduced thickness, dendritic barrie...
https://drivepatents.com/patents/1010030 · 24 Aug 2011
This invention concerns a lithium rechargeable electrochemical cell comprising cathodic and anodic lithium insertion material with p-type and n-type redox active compounds, said electrochemical cell containing said cathodic lithium insertion material and s...
https://drivepatents.com/patents/1010165 · 17 Aug 2011
An object of the present invention is to provide a positive electrode for a lithium secondary battery, which is capable of improving the initial coulomb efficiency of a lithium secondary battery, and the like. A positive electrode for a lithium secondary b...
https://drivepatents.com/patents/1010557 · 3 Aug 2011
To provide a carbon material capable of suppressing excessive reactivity with an electrolytic solution and excellent in a rapid charge/discharge characteristics. [0002] A carbon material for lithium ion secondary batteries, which satisfies: (i) a tap densi...