Patents by Inventor Doo-yeon Lee
Doo-yeon 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: 20130316268Abstract: A composition for filling an ion exchange membrane including a first aromatic vinyl monomer having a halogenated alkyl group or a quaternary ammonium salt group, a method of preparing the ion exchange membrane, an ion exchange membrane prepared using the method, and a redox flow battery including the ion exchange membrane.Type: ApplicationFiled: December 19, 2012Publication date: November 28, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Myung-jin LEE, Joung-won PARK, Duk-jin OH, Doo-yeon LEE, Moon-sung KANG, Ji-su KIM, Hyeon-jung CHA
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Patent number: 8481192Abstract: A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.Type: GrantFiled: July 1, 2010Date of Patent: July 9, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-young Sun, Joung-won Park, Seung-sik Hwang, Doo-yeon Lee, Myung-jin Lee
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Publication number: 20130004819Abstract: An electrolyte for a redox flow battery and a redox flow battery including the electrolyte, the electrolyte including a metal-ligand coordination compound as a cation and an anion containing at least four atoms linked to each other by a straight chain in a certain direction.Type: ApplicationFiled: February 16, 2012Publication date: January 3, 2013Applicants: Seoul National University R&DB Foundation, Samsung Electronics Co., Ltd.Inventors: Jun-young Mun, Seung-sik Hwang, Doo-yeon Lee, Hyung-tae Kim, Young-gyu Kim, Oh-min Kwon, Tae-eun Yim
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Publication number: 20120171531Abstract: A metal-ligand coordination compound containing an aliphatic ligand useful as a catholyte and/or an anolyte that enables the provision of a redox flow battery having high energy efficiency and charge/discharge efficiency.Type: ApplicationFiled: October 5, 2011Publication date: July 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Joung-won Park, Myung-jin Lee, Doo-yeon Lee, Seung-sik Hwang, Duk-jin Oh, Seung Uk Son
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Publication number: 20120171541Abstract: A redox flow battery. A metal-ligand coordination compound including an aromatic ligand that contains an electron withdrawing group is used as the catholyte and/or the anolyte so that a redox flow battery having high energy density and excellent charge/discharge efficiency may be provided.Type: ApplicationFiled: October 6, 2011Publication date: July 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Joung-won Park, Myung-jin Lee, Seung-sik Hwang, Doo-yeon Lee, Duk-jin Oh
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Publication number: 20120107661Abstract: A redox flow battery including a positive electrode electrolyte and a negative electrode electrolyte, each of which includes a metal-ligand coordination complex, in which a metal of a metal-ligand coordination complex of the positive electrode electrolyte is different from a metal of a metal-ligand coordination complex of the negative electrode electrolyte. Due to use of different metals in the positive and negative electrode electrolytes, the redox flow battery has high energy density and high charge and discharge efficiency.Type: ApplicationFiled: November 2, 2011Publication date: May 3, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Myung Jin Lee, Doo-yeon Lee, Duk-jin Oh, Joung-won Park, Seung-sik Hwang
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Patent number: 8053108Abstract: An organic electrolytic solution comprising a nonaqueous solvent and a lithium salt, wherein the organic electrolytic solution comprises a compound of Formula 1 and at least one selected from compounds of Formulas 2 through 5: wherein R1 a C1˜C10 alkoxy group, wherein R2 and R3 are independently unsubstituted C1˜C5 alkyl group or C1˜C5 alkyl group substituted with halogen atom, wherein n is an integer between 1 and 6.Type: GrantFiled: August 8, 2008Date of Patent: November 8, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Doo-Yeon Lee, Hyo-Sug Lee
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Publication number: 20110195283Abstract: An organic electrolyte solution for use in a redox flow battery and the redox flow battery including the organic electrolyte solution has a high energy density because re-precipitation is prevented in the organic electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.Type: ApplicationFiled: January 28, 2011Publication date: August 11, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-young Sun, Joung-won Park, Doo-yeon Lee, Seung-uk Son
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Publication number: 20110189549Abstract: A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.Type: ApplicationFiled: July 1, 2010Publication date: August 4, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Hee-young Sun, Joung-won Park, Seung-sik Hwang, Doo-yeon Lee, Myung-jin Lee
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Patent number: 7968247Abstract: Provided are a polymer electrolyte membrane and a fuel cell including the same. The polymer electrolyte membrane has a phosphoric acid that is substituted with an aliphatic hydrocarbon. The polymer electrolyte membrane has excellent ion conductivity, heat resistance, and liquid-holding properties. The fuel cell including the polymer electrolyte membrane exhibits excellent performance.Type: GrantFiled: May 15, 2006Date of Patent: June 28, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Doo-yeon Lee, Hee-young Sun
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Patent number: 7939216Abstract: A polymer electrolyte membrane includes a cross-linking reaction product between a hydrophilic polymer and a cross-linking agent represented by Formula 1 below wherein R1 is substituted or unsubstituted C1-C20 alkyl group, substituted or unsubstituted C6-C20 aryl group, or substituted or unsubstituted C2-C20 heteroaryl group; and n is an integer in the range of 1 to 5. The polymer electrolyte membrane may be prepared by preparing a composition for forming a polymer electrolyte membrane including the hydrophilic polymer, the cross-linking agent represented by Formula 1 and a solvent, applying the composition for forming a polymer electrolyte membrane to a supporting substrate; and heat treating the composition for forming the polymer electrolyte membrane to form the polymer electrolyte membrane. A fuel cell or other device includes the polymer electrolyte membrane. The polymer electrolyte membrane has low solubility to a strong acid and excellent ionic conductivity.Type: GrantFiled: January 9, 2007Date of Patent: May 10, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Chung-kun Cho, Doo-yeon Lee
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Publication number: 20110047388Abstract: A method and apparatus are provided for remotely controlling access to pornographic content of an image in a first device, the method including acquiring content of the image, determining whether the content of the image is pornographic by analyzing at least one image frame constituting the contents of the image, blocking access to the content of the image when the content is determined to be pornographic, extracting at least one representative problematic image frame from the content of the image; transmitting the at least one representative problematic image frame to a second device; receiving control commands from the second device and controlling access to the content of the image blocked in the first device, based on the control commands.Type: ApplicationFiled: January 15, 2010Publication date: February 24, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Tae-suh PARK, Ui-hyeon HWANG, Seung-ji YANG, Doo-yeon LEE
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Patent number: 7727653Abstract: A polymer electrolyte membrane includes a poly(benzoxazole) polymer doped with at least one acid. The polymer electrolyte membrane is manufactured by impregnating poly(benzoxazole) with an acid and has better ionic conductivity at high temperatures and better mechanical properties than a conventional poly(benzoxazole) polymer electrolyte membrane. In addition, the polymer electrolyte membrane has equivalent thermal stability to a conventional polymer electrolyte membrane.Type: GrantFiled: January 27, 2006Date of Patent: June 1, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Chung-kun Cho, Doo-yeon Lee, Hee-young Sun
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Publication number: 20090011340Abstract: An organic electrolytic solution comprising a nonaqueous solvent and a lithium salt, wherein the organic electrolytic solution comprises a compound of Formula 1 and at least one selected from compounds of Formulas 2 through 5: wherein R1, a C1˜C10 alkoxy group, wherein R2 and R3 are independently unsubstituted C1˜C5 alkyl group or C1˜C5 alkyl group substituted with halogen atom, wherein n is an integer between 1 and 6.Type: ApplicationFiled: August 8, 2008Publication date: January 8, 2009Applicant: SAMSUNG SDI CO., LTD.Inventors: Doo-yeon Lee, Hyo-sug Lee
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Patent number: 7410731Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and a dicarboxylic acid derivative having at least one substituted silyl group. The organic electrolytic solution and the lithium battery employing the same have improved reductive decomposition stability, thereby decreasing an irreversible capacity after a first cycle and improving the charge/discharge efficiency and lifespan of the battery. The lithium battery has non-varying chemical properties at room temperature and a uniform thickness after standard charging, and thus has high reliability.Type: GrantFiled: February 1, 2006Date of Patent: August 12, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Jae-gu Yoon, Han-su Kim, Dong-min Im, Galina Myachina, Boris A. Trofimov, Doo-yeon Lee, Myung-dong Cho
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Publication number: 20070166592Abstract: A polymer electrolyte membrane includes a cross-linking reaction product between a hydrophilic polymer and a cross-linking agent represented by Formula 1 below wherein R1 is substituted or unsubstituted C1-C20 alkyl group, substituted or unsubstituted C6-C20 aryl group, or substituted or unsubstituted C2-C20 heteroaryl group; and n is an integer in the range of 1 to 5. The polymer electrolyte membrane may be prepared by preparing a composition for forming a polymer electrolyte membrane including the hydrophilic polymer, the cross-linking agent represented by Formula 1 and a solvent, applying the composition for forming a polymer electrolyte membrane to a supporting substrate; and heat treating the composition for forming the polymer electrolyte membrane to form the polymer electrolyte membrane. A fuel cell or other device includes the polymer electrolyte membrane. The polymer electrolyte membrane has low solubility to a strong acid and excellent ionic conductivity.Type: ApplicationFiled: January 9, 2007Publication date: July 19, 2007Applicant: Samsung SDI, Co., LtdInventors: Chung-kun CHO, Doo-Yeon Lee
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Publication number: 20060263662Abstract: Provided are a polymer electrolyte membrane and a fuel cell including the same. The polymer electrolyte membrane has a phosphoric acid that is substituted with an aliphatic hydrocarbon. The polymer electrolyte membrane has excellent ion conductivity, heat resistance, and liquid-holding properties. The fuel cell including the polymer electrolyte membrane exhibits excellent performance.Type: ApplicationFiled: May 15, 2006Publication date: November 23, 2006Applicant: Samsung SDI Electronics Co., Ltd.Inventors: Doo-yeon Lee, Hee-young Sun
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Publication number: 20060172200Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and a dicarboxylic acid derivative having at least one substituted silyl group. The organic electrolytic solution and the lithium battery employing the same have improved reductive decomposition stability, thereby decreasing an irreversible capacity after a first cycle and improving the charge/discharge efficiency and lifespan of the battery. The lithium battery has non-varying chemical properties at room temperature and a uniform thickness after standard charging, and thus has high reliability.Type: ApplicationFiled: February 1, 2006Publication date: August 3, 2006Inventors: Jae-gu Yoon, Han-su Kim, Dong-min Im, Galina Myachina, Boris Trofimov, Doo-yeon Lee, Myung-dong Cho
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Publication number: 20040146778Abstract: An organic electrolytic solution comprising a nonaqueous solvent and a lithium salt, wherein the organic electrolytic solution comprises a compound of Formula 1 and at least one selected from compounds of Formulas 2 through 5: 1Type: ApplicationFiled: August 15, 2003Publication date: July 29, 2004Applicant: Samsung SDI Co., Ltd.Inventors: Doo-yeon Lee, Hyo-sug Lee
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Patent number: 6117596Abstract: An organic electrolyte containing an organic solvent mixture and a lithium (Li) salt, and a lithium secondary cell adopting the electrolyte. The organic electrolyte contains the organic solvent mixture comprising a solvent having a high dielectric constant, a solvent having a low viscosity and a compound expressed by the following chemical formula (1): ##STR1## wherein R.sub.1 and R.sub.2 are independently C.sub.1 to C.sub.3 linear or cyclic alkyl, and x is an integer from 1 to 4. The organic electrolyte for a lithium secondary cell is improved in ion conductivity, low-temperature storage characteristics, and a wide potential window region. Also, the lithium salt may be a mixture of inorganic lithium salts and organic lithium salts.Type: GrantFiled: September 4, 1998Date of Patent: September 12, 2000Assignee: Samsung Electronics Co., Ltd.Inventors: Doo-yeon Lee, Seok-gwang Doo, Yuong-soo Son, Bok-hwan Jung