Patents by Inventor Won-Seog Oh
Won-Seog Oh 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).
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Patent number: 7897279Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: GrantFiled: August 6, 2009Date of Patent: March 1, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Patent number: 7850743Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: GrantFiled: August 6, 2009Date of Patent: December 14, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Patent number: 7785736Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: GrantFiled: August 6, 2009Date of Patent: August 31, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Patent number: 7666545Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: GrantFiled: August 5, 2004Date of Patent: February 23, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Publication number: 20100000078Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: ApplicationFiled: August 6, 2009Publication date: January 7, 2010Applicant: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Publication number: 20090297932Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: ApplicationFiled: August 6, 2009Publication date: December 3, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Won-Seog OH, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Publication number: 20090297931Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: ApplicationFiled: August 6, 2009Publication date: December 3, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Publication number: 20050042516Abstract: An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.Type: ApplicationFiled: August 5, 2004Publication date: February 24, 2005Applicant: Samsung SDI Co., Ltd.Inventors: Won-Seog Oh, Soon-Ki Woo, Kwang-Soo Kim, Chang-Seob Kim
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Publication number: 20030113634Abstract: An organic electrolytic solution includes ethylenically unsaturated compounds which suppress swelling of a battery due to the gas produced when the battery is stored at high temperature or when charging/discharging cycles are repeatedly performed, and reduces internal resistance of the battery. Polymer electrolytes and lithium batteries are manufactured using the organic electrolytic solutions. The ethylenically unsaturated compounds are vinylene carbonates, vinyl sulfones, acrylonitriles or derivatives thereof.Type: ApplicationFiled: September 3, 2002Publication date: June 19, 2003Applicant: SAMSUNG SDI CO., LTD.Inventors: Won-Seog Oh, Sang-Won Lee, Kwang Sup Kim, Sang-Hoon Choy