Patents by Inventor Robert Ellenwood

Robert Ellenwood has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8703337
    Abstract: A lithium cobalt oxide powder for use as an active positive electrode material in lithium-ion batteries, the lithium cobalt oxide powder having a Ti content of between 0.1 and 0.25 mol %, and the lithium cobalt oxide powder having a density PD in g/cm3 dependent on the powder particle size expressed by the D50 value in ?m, wherein PD?3.63+[0.0153*(D50?17)].
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 22, 2014
    Assignee: Umicore
    Inventors: Robert Ellenwood, Jens Martin Paulsen, JaeRyoung Lee
  • Patent number: 8608987
    Abstract: The disclosure relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The disclosure describes a higher density LiCoO2 positive electrode material for lithium secondary batteries, with a specific surface area (BET) below 0.2 m2/g, and a volumetric median particle size (d50) of more than 15 ?m. This product has improved specific capacity and rate-capability. Other embodiments of the disclosure are an aggregated Co(OH)2, which is used as a precursor, the electrode mix and the battery manufactured using above-mentioned LiCoO2.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: December 17, 2013
    Assignee: Umicore
    Inventors: Zhaohui Chen, Robert Ellenwood
  • Patent number: 8337727
    Abstract: The disclosure relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The disclosure describes a higher density LiCoO2 positive electrode material for lithium secondary batteries, with a specific surface area (BET) below 0.2 m2/g, and a volumetric median particle size (d50) of more than 15 ?m. This product has, improved specific capacity and rate-capability. Other embodiments of the disclosure are an aggregated Co(OH)2, which is used as a precursor, the electrode mix and the battery manufactured using abovementioned LiCoO2.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: December 25, 2012
    Assignee: Umicore
    Inventors: Zhaohui Chen, Robert Ellenwood
  • Publication number: 20120183858
    Abstract: A lithium cobalt oxide powder for use as an active positive electrode material in lithium-ion batteries, the lithium cobalt oxide powder having a Ti content of between 0.1 and 0.25 mol %, and the lithium cobalt oxide powder having a density PD in g/cm3 dependent on the powder particle size expressed by the D50 value in ?m, wherein PD?3.63+[0.0153*(D50?17)].
    Type: Application
    Filed: November 23, 2011
    Publication date: July 19, 2012
    Inventors: Robert ELLENWOOD, Jens Martin PAULSEN, JaeRyoung LEE
  • Publication number: 20110049420
    Abstract: This invention describes a heterogeneous metal bearing material, comprising a host material composed of primary particles agglomerated into secondary particles, and a particulate dopant material, characterised in that the particulate dopant material is homogeneously distributed within the secondary particles of said host material. In particular, the dopant material is TiO2 and the host material is either one or a mixture of NixMnyCO2 hydroxide, oxyhydroxide, and oxide, with 0?x, y, z?1, and x+y+z=1.
    Type: Application
    Filed: December 11, 2008
    Publication date: March 3, 2011
    Inventors: Robert Ellenwood, Jens Paulsen
  • Publication number: 20100176352
    Abstract: The disclosure relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The disclosure describes a higher density LiCoO2 positive electrode material for lithium secondary batteries, with a specific surface area (BET) below 0.2 m2/g, and a volumetric median particle size (d50) of more than 15 ?m. This product has, improved specific capacity and rate-capability. Other embodiments of the disclosure are an aggregated Co (OH)2, which is used as a precursor, the electrode mix and the battery manufactured using abovementioned LiCoO2.
    Type: Application
    Filed: June 10, 2008
    Publication date: July 15, 2010
    Inventors: Zhaohui Chen, Robert Ellenwood