Patents by Inventor Myungro Lee
Myungro Lee 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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Publication number: 20220102699Abstract: A method for manufacturing a secondary battery according to the present invention includes the steps of: a) adding a point-type conductive carbon material to a negative electrode active material slurry and mixing the materials to prepare a first mixed slurry; b) adding a linear conductive carbon material to the first mixed slurry and mixing the materials to prepare a second mixed slurry; and c) coating a current collector with the second mixed slurry and performing rolling to manufacture an electrode.Type: ApplicationFiled: January 29, 2020Publication date: March 31, 2022Inventors: Yongseok Lee, Junghwan Kim, Sangwon Bae, Jihee Bae, Myungro Lee
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Patent number: 9543562Abstract: A secondary battery comprises: a plurality of cylindrical electrode assemblies, wherein each electrode assembly comprises a positive electrode plate and a negative electrode plate rolled together with a separator interposed between the positive electrode plate and the negative electrode plate; a can housing the plurality of electrode assemblies; a cap assembly sealing the can; a positive electrode tab coupled to the positive electrode plate in each electrode assembly; and a negative electrode tab coupled to the negative electrode plate in each electrode assembly, wherein a first plurality of positive electrode tabs is aligned along a first line when viewed in one direction, and wherein a first plurality of negative electrode tabs is aligned along a second line when viewed in the one direction.Type: GrantFiled: May 24, 2011Date of Patent: January 10, 2017Assignee: Samsung SDI Co., Ltd.Inventor: Myungro Lee
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Patent number: 8691419Abstract: A cylindrical secondary battery having improved performance in a compression test and a collision test. The cylindrical battery including a ceramic layer coated on at least one of a cathode plate and an anode plate, and a center pin having a wall thickness of 0.05 to 0.1 mm, which is inserted into the center of an electrode assembly of the battery. The ceramic layer can have a thickness of 6.0 ?m to 8.0 ?m.Type: GrantFiled: February 18, 2009Date of Patent: April 8, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Myungro Lee, Youngcheol Jang, Cheolhee Hwang, Wanmook Lim, Wonchull Han, Hyorim Bak
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Patent number: 8450009Abstract: A cylindrical lithium ion secondary battery including a center pin that has a diameter greater than a diameter of a hole formed in the center of an insulating plate to reduce the noise generated by contacting the center pin with the bottom surface of the cylindrical can.Type: GrantFiled: May 28, 2010Date of Patent: May 28, 2013Assignee: Samsung SDI Co., Ltd.Inventor: Myungro Lee
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Patent number: 8349482Abstract: The present invention relates to an electrode assembly and a secondary battery with the same, more particularly to the electrode assembly which includes an anode plate, a cathode plate, and a separator disposed between the anode plate and the cathode plate, wherein the separator includes a ceramic separator including a ceramic filler which is formed by mixing two groups of particles of the same material, but with a different diameter. The particles with the comparatively smaller diameter are disposed between the particles with the comparatively greater diameter.Type: GrantFiled: October 26, 2007Date of Patent: January 8, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Sangok Lee, Myungro Lee, Cheolhee Hwang
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Publication number: 20120107655Abstract: A secondary battery comprises: a plurality of cylindrical electrode assemblies, wherein each electrode assembly comprises a positive electrode plate and a negative electrode plate rolled together with a separator interposed between the positive electrode plate and the negative electrode plate; a can housing the plurality of electrode assemblies; a cap assembly sealing the can; a positive electrode tab coupled to the positive electrode plate in each electrode assembly; and a negative electrode tab coupled to the negative electrode plate in each electrode assembly, wherein a first plurality of positive electrode tabs is aligned along a first line when viewed in one direction, and wherein a first plurality of negative electrode tabs is aligned along a second line when viewed in the one direction.Type: ApplicationFiled: May 24, 2011Publication date: May 3, 2012Applicant: Samsung SDI Co., Ltd.Inventor: Myungro Lee
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Publication number: 20100310925Abstract: A cylindrical lithium ion secondary battery including a center pin that has a diameter greater than a diameter of a hole formed in the center of an insulating plate to reduce the noise generated by contacting the center pin with the bottom surface of the cylindrical can.Type: ApplicationFiled: May 28, 2010Publication date: December 9, 2010Applicant: Samsung SDI Co., Ltd.Inventor: Myungro LEE
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Publication number: 20090208826Abstract: A cylindrical secondary battery having improved performance in a compression test and a collision test. The cylindrical battery including a ceramic layer coated on at least one of a cathode plate and an anode plate, and a center pin having a wall thickness of 0.05 to 0.1 mm, which is inserted into the center of an electrode assembly of the battery. The ceramic layer can have a thickness of 6.0 ?m to 8.0 ?m.Type: ApplicationFiled: February 18, 2009Publication date: August 20, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Myungro LEE, Youngcheol JANG, Cheolhee HWANG, Wanmook LIM, Wonchull HAN, Hyorim BAK
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Publication number: 20090092889Abstract: Provided is a lithium secondary battery which is stable to penetration of a sharp object, which may occur by external impact. The lithium secondary battery comprises an electrode assembly which is formed by winding a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; and a can for receiving the electrode assembly, wherein the separator is formed of a ceramic material, a polarity of the first electrode plate is opposite to that of the can, and the outermost part of the first electrode plate is disposed further outside than the outermost part of the second electrode plate.Type: ApplicationFiled: October 8, 2008Publication date: April 9, 2009Applicant: Samsung SDI Co., Ltd.Inventors: Cheolhee Hwang, Wanmook Lim, Hyorim Bak, Myungro Lee, Youngchurl Chang
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Publication number: 20080102361Abstract: The present invention relates to an electrode assembly and a secondary battery with the same, more particularly to the electrode assembly which includes an anode plate, a cathode plate, and a separator disposed between the anode plate and the cathode plate, wherein the separator includes a ceramic separator including a ceramic filler which is formed by mixing two groups of particles of the same material, but with a different diameter. The particles with the comparatively smaller diameter are disposed between the particles with the comparatively greater diameter.Type: ApplicationFiled: October 26, 2007Publication date: May 1, 2008Applicant: Samsung SDI Co., Ltd.Inventors: Sangok Lee, Myungro Lee, Cheolhee Hwang