Alkaline Earth Metal Or Magnesium (mg) Component Is Active Material Patents (Class 429/231.6)
  • Patent number: 9960467
    Abstract: A non-aqueous type magnesium oxygen battery including a negative electrode, a positive electrode, a non-aqueous magnesium ion conductor, and a promoter is described. The negative electrode is configured to absorb magnesium and release magnesium ion. The positive electrode is configured to produce a discharge product that includes magnesium and oxygen during a discharge process of the battery. The non-aqueous magnesium on conductor is between the negative electrode and the positive electrode. The promoter is included with the positive electrode. The promoter is configured to promote MgO2 (magnesium peroxide) production during the discharge process of the battery.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: May 1, 2018
    Assignees: DENSO CORPORATION, The Regents of The University of Michigan
    Inventors: Junichi Naruse, Donald Siegel, Jeffrey Smith, Gulin Vardar, Charles Monroe
  • Patent number: 9502720
    Abstract: A seawater power generation system is installed beside an ocean and comprises a seawater processing apparatus, a precipitation apparatus, a separation apparatus and a power generation apparatus. The seawater processing apparatus obtains seawater from the ocean and concentrates the seawater into concentrated seawater. The precipitation apparatus heats the concentrated seawater to form a precipitate of a metal oxide. The separation apparatus heats the metal oxide and reduces the metal oxide into a metal. The power generation apparatus uses the metal as a first electrode and includes a second electrode and an electrolyte contacting the first electrode and the second electrode. Thereby, the seawater is continuously fabricated into the first electrode. The electrolyte respectively reacts with the first electrode and the second electrode in an electrochemical reaction fashion to form a potential difference between the first and second electrode and generate stable electric power.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: November 22, 2016
    Assignee: TAIWAN CARBON NANOTUBE TECHNOLOGY CORPORATION
    Inventors: Chun-Hsien Tsai, Kuang-Che Lee, Chun-Jung Tsai, Ting-Chuan Lee, Yuan-Shin Huang
  • Patent number: 9444094
    Abstract: An anode active material for a magnesium battery includes a Metal M which electrochemically alloys with magnesium, magnesium, and carbon that are ball milled forming an active material mixture. The mixture may be of the formula: MgaM1-a (0?a<1)+Carbon wherein the mixture is ball milled and has a stoichiometric amount of M and Mg and carbon of from 0.1-50 weight percent of the total mixture.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: September 13, 2016
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ruigang Zhang, Fuminori Mizuno
  • Patent number: 9231244
    Abstract: Provided is a positive electrode active material for lithium ion batteries, which is capable of realizing stability and safety at a high voltage, a high energy density, high load characteristics, and long-term cycle characteristics by controlling a crystal shape of LiMnPO4 particles having a crystal structure very suitable for Li diffusion or controlling an average primary particle size, a production method thereof, an electrode for lithium ion batteries, and a lithium ion battery. The positive electrode active material for lithium ion batteries of the invention is a positive electrode active material for lithium ion batteries, which is formed from LiMnPO4. Values of lattice constants a, b, and c, which are calculated from an X-ray diffraction pattern, satisfy 10.41 ?<a?10.43 ?, 6.070 ?<b?6.095 ?, and 4.730 ?<C?4.745 ?, and an average particle size is 10 to 100 nm.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: January 5, 2016
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kouji Oono, Satoru Oshitari
  • Publication number: 20150140359
    Abstract: In an aspect, a negative active material, a negative electrode and a lithium battery including the negative active material, and a method of manufacturing the negative active material is provided. The negative active material includes a silicon-based active material substrate; a metal oxide nanoparticle disposed on a surface of the silicon-based active material substrate. An initial irreversible capacity of the lithium battery may be decreased and lifespan characteristics may be improved by using the negative active material.
    Type: Application
    Filed: April 25, 2014
    Publication date: May 21, 2015
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Sang-Eun Park, Young-Ugk Kim, Hyun-Ki Park, Chang-Su Shin, Ui-Song Do, Sung-Su Kim
  • Publication number: 20150140387
    Abstract: A biodegradable battery is provided. The battery includes an anode comprising a material including an inner surface and an outer surface, wherein electrochemical oxidation of the anode material results in the formation of a reaction product that is substantially non-toxic and a cathode comprising a material including an inner surface and an outer surface, the inner surface of the cathode being in direct physical contact with the inner surface of the anode, wherein electrochemical reduction of the cathode material results in the formation of a reaction product that is substantially non-toxic, and wherein the cathode material presents a larger standard reduction potential than the anode material.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventors: GERALD HODGKINSON, WILLIAM O. POWERS, AHMAD ROBERT HADBA
  • Patent number: 9023523
    Abstract: The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bMb1Fe1-cMc2Pd-eMe3Ox, wherein Fe has the oxidation state +2 and M1, M2, M3, a, b, c, d, e and x are: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Al, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, F a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.0-8, depending on the amount and oxidation state of Li, M1, M2, P, M3, wherein compounds of general formula (I) are neutrally charged, comprising the following steps (A) providing a mixture comprising at least one lithium-comprising compound, at least one iron-comprising compound, in which iron has the oxidation state 0, and at least one M1-comprising compound, if present, and/or at least one M2-comprising compound, if present, and/or least one M3-comprising compound, if present, and at least one compound comprising at least one phosphorous atom in oxidation state +5, and (B) heating the mixture obtained in step (A) at a temperature of 100 to 500° C.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 5, 2015
    Assignee: BASF SE
    Inventors: Kirill Bramnik, Hartmut Hibst, Jordan Keith Lampert
  • Patent number: 9023537
    Abstract: A positive electrode includes: a positive electrode collector; and a positive electrode active material layer provided on the positive electrode collector and containing a positive electrode active material and an alkaline earth metal carbonate having a fixed form.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: May 5, 2015
    Assignee: Sony Corporation
    Inventors: Kentaro Yoshimura, Toru Odani, Tadahiko Kubota
  • Publication number: 20150111105
    Abstract: To provide an active material with high capacity, high initial charge-discharge efficiency, and high average discharge voltage. An active material according to the present invention includes a first active material and a second active material, wherein the ratio (?) of the second active material (B) to the total amount by mole of the first active material (A) and the second active material (B) satisfies 0.4 mol %???18 mol % [where ?=(B/(A+B))×100].
    Type: Application
    Filed: March 27, 2013
    Publication date: April 23, 2015
    Applicant: TDK CORPORATION
    Inventors: Tomohiko Kato, Atsushi Sano, Masaki Sobu, Akinobu Nojima
  • Patent number: 9012086
    Abstract: A magnesium ion battery includes a first electrode including a substrate and an active material deposited on the substrate. Also provided is a second electrode. An electrolyte is located between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes indium and an intermetallic compound of magnesium and indium.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 21, 2015
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Nikhilendra Singh, Masaki Matsui
  • Publication number: 20150104707
    Abstract: The present disclosure refers to a cathode material composite having improved conductivity, and a cathode and electrochemical device having the cathode material composite. In accordance with one embodiment of the present disclosure, a conductive polymer is positioned on the surface of a shell present in the form of a tetragonal structure in the lithium manganese oxide, thereby enhancing electrical conductivity to be highly involved in reaction around 3V, and providing a conductive path to improve the capacity, life and rate characteristics of an electrochemical device.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Ji-Hye Park, Song-Taek Oh, Hyeok-Moo Lee
  • Patent number: 9005813
    Abstract: A negative electrode active material, a method of preparing the negative electrode active material and a lithium secondary battery including the negative electrode active material are disclosed. A negative electrode active material includes a lithium titanate, wherein a portion of lithium of the lithium titanate is substituted by at least one selected from the group consisting of Sr, Ba, a mixture thereof and an alloy thereof, and thus a lithium secondary battery including the negative electrode active material may improve high-rate discharge characteristics.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: April 14, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jong-Hee Lee, Yong-Mi Yu, Joa-Young Jeong, Jae-Myung Kim
  • Publication number: 20150099183
    Abstract: Electrodes employing as active material metal nanoparticles synthesized by a novel route are provided. The nanoparticle synthesis is facile and reproducible, and provides metal nanoparticles of very small dimension and high purity for a wide range of metals. The electrodes utilizing these nanoparticles thus may have superior capability. Electrochemical cells employing said electrodes are also provided.
    Type: Application
    Filed: March 19, 2014
    Publication date: April 9, 2015
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Nikhilendra Singh, Michael Paul Rowe
  • Publication number: 20150099182
    Abstract: Methods for synthesizing metal nanoparticles and the nanoparticles so produced are provided. The methods include addition of surfactant to a novel reagent complex between zero-valent metal and a hydride. The nanoparticles produced by the method include oxide-free, zero-valent tin nanoparticles useful in fabricating a battery electrode.
    Type: Application
    Filed: March 19, 2014
    Publication date: April 9, 2015
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Nikhilendra Singh, Michael Paul Rowe
  • Publication number: 20150099175
    Abstract: The present invention provides an electrode material in which unevenness in a supporting amount of a carbonaceous film is less when using an electrode-active material having a carbonaceous film on a surface thereof as the electrode material, and which is capable of improving conductivity, and a method for producing the electrode material. The electrode material includes an aggregate formed by aggregating an electrode-active material in which a carbonaceous film is formed on a surface. In the electrode material, an average particle size of the aggregate is 0.5 to 100 ?m, a volume density of the aggregate is 50 to 80 vol % of a volume density in a case in which the aggregate is a solid, and 80% or more of the surface of the electrode-active material is covered with the carbonaceous film. Alternatively, the electrode material includes an aggregate formed by aggregating electrode-active material particles in which a carbonaceous film is formed on a surface.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 9, 2015
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Takao KITAGAWA, Hirofumi YASUMIISHI, Masaru UEHARA
  • Patent number: 8999575
    Abstract: Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a current collector, a first layer irreversibly deintercalating lithium ions, and a second layer allowing reversible intercalation and deintercalation of lithium ions. In one embodiment, the first layer further comprises a first sublayer and a second sublayer, in which the first sublayer is interposed between the current collector and the second sublayer. The first sublayer comprises a first active material represented by Formula 1 Li2Mo1-nR1nO3, and the second sublayer comprises a second active material represented by Formula 2 Li2Ni1-mR2mO2. In Formula 1, 0?n<1; and R1 is selected from the group consisting of manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), magnesium (Mg), nickel (Ni), and combinations of at least two of the foregoing elements.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Jay-Hyok Song, Young-Hun Lee, Yu-Mi Song, Yoon-Chang Kim
  • Patent number: 8999583
    Abstract: A lithium-ion secondary battery allowed to improve cycle characteristics and initial charge-discharge characteristics is provided. The lithium-ion secondary battery includes a cathode; an anode; and an electrolytic solution. The anode includes an anode active material layer including a plurality of anode active material particles. The anode active material particles each include a core section and a coating section applied to a part or a whole of a surface of the core section, and the core section includes a silicon-based material (SiOx: 0?x<0.5) and the coating section includes an amorphous or low-crystalline silicon-based material (SiOy: 0.5?y?1.8).
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Takakazu Hirose, Kenichi Kawase, Takashi Fujinaga, Masaharu Senoue, Motoki Endo, Masayuki Iwama
  • Publication number: 20150093641
    Abstract: Provided is a lithium metal compound oxide having a layered structure, which is very excellent as a positive electrode active material of a battery that is mounted on, particularly, an electric vehicle or a hybrid vehicle. Suggested is a lithium metal compound oxide having a layered structure which is expressed by general formula of Li1+xM1?xO2 (M represents metal elements including three elements of Mn, Co, and Ni). In the lithium metal compound oxide having a layered structure, D50 is more than 4 ?m and less than 20 ?m, a ratio of a primary particle area to a secondary particle area of secondary particles having a size corresponding to the D50 (“primary particle area/secondary particle area”) is 0.004 to 0.035, and the minimum value of powder crushing strength that is obtained by crushing a powder using a microcompression tester is more than 70 MPa.
    Type: Application
    Filed: April 16, 2013
    Publication date: April 2, 2015
    Inventors: Tetsuya Mitsumoto, Hitohiko Ide, Shinya Kagei, Yoshimi Hata
  • Patent number: 8993167
    Abstract: Provided is a cathode active material composed of lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide contains nickel in an amount of 40% or higher, based on the total weight of transition metals, and the cathode active material comprises a first coating layer provided on the surface thereof and a second coating layer provided on the surface of the first coating layer, wherein the first coating layer is composed of a non-reactive material selected from the group consisting of oxides, nitrides, sulfides and mixtures or complexes thereof and the second coating layer is composed of a carbon-based material.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 31, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung kyun Chang, Hong-Kyu Park, Sinyoung Park
  • Patent number: 8993163
    Abstract: A positive electrode active material provided by the present invention is formed of a lithium-nickel-containing metal phosphate compound represented by a general formula: LiNi(1-x)MxPO4(1) (in Formula (1), M is one or more metal elements selected from divalent and trivalent metal elements, and x is a number satisfying the condition 0<x<0.5). At least part of a surface of the lithium-nickel-containing metal phosphate compound is covered with carbon, and the lithium-nickel-containing metal phosphate compound covered with carbon has an olivine-type crystal structure confirmed by structure analysis by X-ray diffraction.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: March 31, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Jun Yoshida
  • Publication number: 20150086859
    Abstract: A cathode active material for a magnesium secondary battery, the cathode active material including a composite transition metal oxide which is expressed by Chemical Formula 1 and intercalates and deintercalates magnesium: MgxMa1-yMbyO2+d??Chemical Formula 1 wherein 0?x?1, 0.05?y<0.5, and ?0.3?d<1, and Ma and Mb are each independently a metal selected from the group consisting of Groups 5 to 12 of the Periodic Table.
    Type: Application
    Filed: January 8, 2014
    Publication date: March 26, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won-seok CHANG, Seok-soo LEE, Ju-sik KIM, Jae-myung LEE, Dong-wook HAN
  • Patent number: 8986887
    Abstract: A magnesium secondary battery includes: a negative electrode for adsorbing and releasing a magnesium ion; a positive electrode for producing a magnesium oxide product in a discharging process; and a non-aqueous magnesium ion conductor disposed between the negative electrode and the positive electrode. The positive electrode includes an accelerator for promoting the magnesium oxide product, which is decomposed to a magnesium ion and an oxygen molecule easier than MgO. In this case, since the electrochemical reaction at the positive electrode in a charging process rapidly progresses, the magnesium secondary battery can charge and discharge repeatedly. Thus, the battery functions as a secondary battery sufficiently.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: March 24, 2015
    Assignee: Denso Corporation
    Inventors: Nobuyoshi Sakakibara, Kenichirou Kami, Norikazu Adachi, Hidehiko Hiramatsu
  • Publication number: 20150079472
    Abstract: A method for manufacturing silicon flakes includes steps as follows. A silicon material is contacted with a machining tool which includes at least one abrasive particle fixedly disposed thereon. The silicon material is scraped along a displacement path with respect to the machining tool to generate the silicon flakes having various particle sizes.
    Type: Application
    Filed: June 13, 2014
    Publication date: March 19, 2015
    Inventors: Kun-Fung LIN, Rong-Ruey JENG, Han-Tu LIN, Chih-Hung CHAN
  • Publication number: 20150079476
    Abstract: A seawater power generation system is installed beside an ocean and comprises a seawater processing apparatus, a precipitation apparatus, a separation apparatus and a power generation apparatus. The seawater processing apparatus obtains seawater from the ocean and concentrates the seawater into concentrated seawater. The precipitation apparatus heats the concentrated seawater to form a precipitate of a metal oxide. The separation apparatus heats the metal oxide and reduces the metal oxide into a metal. The power generation apparatus uses the metal as a first electrode and includes a second electrode and an electrolyte contacting the first electrode and the second electrode. Thereby, the seawater is continuously fabricated into the first electrode. The electrolyte respectively reacts with the first electrode and the second electrode in an electrochemical reaction fashion to form a potential difference between the first and second electrode and generate stable electric power.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventors: Chun-Hsien Tsai, Kuang-Che LEE, Chun-Jung Tsai, Ting-Chuan Lee, Yuan-Shin Huang
  • Publication number: 20150072236
    Abstract: Using metal foams for the electrode of secondary lithium battery, preparing method thereof, and secondary lithium battery including the metal foam. A metal foam is used in an electrode of secondary lithium battery where the surface and the inner pore walls are coated with the active materials, a method of manufacturing such metal foam, and secondary lithium battery including the metal foam.
    Type: Application
    Filed: April 18, 2014
    Publication date: March 12, 2015
    Inventors: Ji Hyun Um, Hyeji Park, Myounggeun Choi, Hyelim Choi, Yong-Hun Cho, Yung-Eun Sung, Heeman Choe
  • Publication number: 20150064557
    Abstract: Provided are a cathode active material including lithium transition metal phosphate particles, wherein the lithium transition metal phosphate particles include a first secondary particle formed by agglomeration of two or more first primary particles, and a second secondary particle formed by agglomeration of two or more second primary particles in the first secondary particle, and a method of preparing the same. Since the cathode active material according to an embodiment of the present invention may include first primary particles and second primary particles having different average particle diameters, the exfoliation of the cathode active material from a cathode collector may be minimized and performance characteristics, such as high output characteristics and an increase in available capacity, of a secondary battery may be further improved. In addition, since the first secondary particles are porous, the secondary particles are collapsed and fractured due to rolling when used in a cathode.
    Type: Application
    Filed: October 21, 2014
    Publication date: March 5, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hye Kim, Wang Mo Jung, Sang Seung Oh, Byung Chun Park, Sung Bin Park
  • Publication number: 20150064556
    Abstract: An electrode for a rechargeable battery and a rechargeable battery, the electrode including a current collector; an electrode active material layer; and an electrolyte solution impregnation layer, wherein the electrolyte solution impregnation layer includes a metal oxide and a conductive material.
    Type: Application
    Filed: January 17, 2014
    Publication date: March 5, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jin-Hyon LEE, Ju-Hee SOHN, Jung-Yeon WON, Eun-Young GOH, Jong-Ki LEE, Sang-In PARK
  • Patent number: 8968934
    Abstract: The present invention relates to an electrode for a secondary battery, comprising a collector and a porous electrode active material layer disposed on at least one surface of the collector by spraying metal oxide nanoparticle dispersion, wherein the porous electrode active material comprises one selected from the group consisting of aggregated metal oxide nanoparticles, metal oxide nanoparticles and a mixture thereof, which is capable of undergoing stable high speed charging/discharging cycles under a high-energy-density and high-current condition.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 3, 2015
    Assignee: Korea Institute of Science and Technology
    Inventor: Il Doo Kim
  • Patent number: 8962189
    Abstract: A cathode includes a lithium transition metal complex compound including lithium, one, or two or more transition metals, magnesium, and oxygen as constituent elements. In a standardized X-ray absorption spectrum of the lithium transition metal complex compound measured by an X-ray absorption spectroscopic method, a first absorption edge having absorption edge energy E1 in X-ray absorption intensity of about 0.5 exits in a range where X-ray energy is from about 1303 eV to about 1313 eV both inclusive, in a discharged state in which a discharge voltage is about 3.0 V, and a second absorption edge having absorption edge energy E2 in X-ray absorption intensity of about 0.5 exits, in a charged state in which a charge voltage V is from about 4.3 V to about 4.5 V both inclusive. The absorption edge energies E1 and E2 and the charge voltage V satisfy a relation of E2?E1?(V?4.25)×4.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: February 24, 2015
    Assignee: Sony Corporation
    Inventors: Satoshi Fujiki, Hirotaka Fukudome, Kazunari Motohashi, Yosuke Hosoya, Yoshihiro Kudo
  • Publication number: 20150037689
    Abstract: Provided is a lithium secondary battery with three-dimensional network porous bodies as current collectors in which the internal resistance does not increase even after repeated charging and discharging. A lithium secondary battery including a positive electrode and a negative electrode each having as a current collector a three-dimensional network porous body, the positive electrode and the negative electrode being formed by filling at least an active material into pores of the three-dimensional network porous bodies, wherein the three-dimensional network porous body for the positive electrode is a three-dimensional network aluminum porous body having a hardness of 1.2 GPa or less, and the three-dimensional network porous body for the negative electrode is a three-dimensional network copper porous body having a hardness of 2.6 GPa or less.
    Type: Application
    Filed: February 22, 2013
    Publication date: February 5, 2015
    Inventors: Junichi Nishimura, Kazuhiro Gotou, Akihisa Hosoe, Kentarou Yoshida
  • Publication number: 20150024269
    Abstract: The invention relates to electrodes that contain active materials of the formula: AaMb(SO4)cXx wherein A is a single or mixed alkali metal phase comprising one or more of sodium, potassium, lithium mixed with sodium, lithium mixed with potassium or lithium mixed with sodium and potassium; M is selected from one or more transition metals and/or non-transition metals and/or metalloids; X is a moiety comprising one or more atoms selected from halogen and OH; and further wherein 1<a<3; b is in the range: 0<b?2; c is in the range: 2?c?3 and x is in the range 0?x?1. Such electrodes are useful in, for example, sodium ion battery applications.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 22, 2015
    Inventor: Jeremy Barker
  • Publication number: 20150024280
    Abstract: In a battery production process, a positive electrode active material having a reaction-suppressing layer that does not easily peel off formed on the surface thereof, and a positive electrode and an all-solid-state battery that use said material are provided. The present invention involves positive electrode active material particles for an all-solid-state battery containing sulfide-based solid electrolyte. The positive electrode active material particles are an aggregate containing two or more particles. The surface of the aggregate is coated with a reaction-suppressing layer for suppressing reactions with the sulfide-based solid electrolyte.
    Type: Application
    Filed: May 23, 2011
    Publication date: January 22, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takayuki Uchiyama
  • Publication number: 20150017550
    Abstract: Provided are a current collector, an electrode, and a nonaqueous electrolyte secondary battery, each of which capable of reducing internal resistance and producing cost. More specifically, provided are: a three-dimensional network metal porous body for a current collector, comprising a sheet-shaped three-dimensional network metal porous body, wherein a degree of porosity of the sheet-shaped three-dimensional network metal porous body is 90% or more and 98% or less, and a 30%-cumulative pore diameter (D30) of the sheet-shaped three-dimensional network metal porous body calculated from a fine pore diameter measurement conducted by a bubble point method is 20 ?m or more and 100 ?m or less; an electrode using the three-dimensional network metal porous body; and a nonaqueous electrolyte secondary battery including the electrode.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 15, 2015
    Inventors: Junichi Nishimura, Kazuhiro Gotou, Akihisa Hosoe, Kentarou Yoshida
  • Publication number: 20150017536
    Abstract: Provided is a non-aqueous electrolyte secondary battery excellent in durability, the non-aqueous electrolyte secondary battery including a positive electrode active material, the surface of which is coated with a film formed of an inorganic solid electrolyte, wherein a change in volume of the positive electrode active material during charge and discharge is reduced to prevent deterioration of the film with which the surface of the positive electrode active material is coated. In a non-aqueous electrolyte secondary battery including a positive electrode active material, the surface of which is coated with a film formed of an inorganic solid electrolyte, the positive electrode active material is a lithium-containing composite oxide having a spinel structure, and contains at least one of Ti and Mg as an additional element.
    Type: Application
    Filed: March 9, 2012
    Publication date: January 15, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Abe, Yoshitomo Takebayashi, Ippei Toyoshima
  • Publication number: 20150017527
    Abstract: The present invention relates to a negative electrode active material for a rechargeable lithium battery, a method for preparing the same, and a rechargeable lithium battery using the same, and provides a negative electrode active material for a rechargeable lithium battery of a carbon-metal complex or a mixture type, containing a carbon-based active material including a first ceramic coating layer, a metal-based active material or a metal-base active material including a first ceramic coating layer, and a carbon-based active material.
    Type: Application
    Filed: November 15, 2013
    Publication date: January 15, 2015
    Applicant: POSCO CHEMTECH CO., LTD.
    Inventors: Kyoung Muk LEE, Heon Young LEE, Mi Ryeong LEE, Eun Byeol HYEONG
  • Publication number: 20150017549
    Abstract: Provided an all-solid lithium secondary battery hardly gives rise to internal resistance even if charging and discharging are repeated. The all-solid lithium secondary battery including a positive electrode and a negative electrode, each of electrodes being an electrode in which a three-dimensional network porous body is used as a current collector and pores of the three-dimensional network porous body are filled with at least an active material, wherein the three-dimensional network porous body of the positive electrode includes an aluminum alloy with a Young's modulus of 70 GPa or higher and the three-dimensional network porous body of the negative electrode includes a copper alloy with a Young's modulus of 120 GPa or higher.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 15, 2015
    Inventors: Junichi Nishimura, Kazuhiro Gotou, Akihisa Hosoe, Kentarou Yoshida
  • Publication number: 20150017500
    Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 15, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Publication number: 20150004471
    Abstract: Ultrafast battery devices having enhanced reliability and power density are provided. Such batteries can include a cathode including a first silicon substrate having a cathode structured surface, an anode including a second silicon substrate having an anode structured surface positioned adjacent to the cathode such that the cathode structured surface faces the anode structured surface, and an electrolyte disposed between the cathode and the anode. The anode structured surface can be coated with an anodic active material and the cathode structured surface can be coated with a cathodic active material.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Zhaohui Chen, Yang Liu, Charles W. Holzwarth, Nicolas Cirigliano, Bum Ki Moon
  • Publication number: 20150003033
    Abstract: An energy storage device includes an electrode made from an active material in which a plurality of channels have been etched. The channels are coated with an electrically functional substance selected from a conductor and an electrolyte.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: Yang Liu, Priyanka Pande, Bum Ki Moon, Michael C. Graf, Donald S. Gardner, Nicolas Cirigliano, Shanthi Murali, Zhaohui Chen
  • Patent number: 8916294
    Abstract: Lithium rich metal oxyfluorides are described with high specific capacity and, good cycling properties. The materials have particularly good high rate capabilities. The fluorine dopant can be introduced in a low temperature process to yield the materials with desirable cycling properties. In some embodiments, the positive electrode active materials have a composition represented approximately by the formula Li1+xNi?Mn?Co?A?O2?zFz where: x is from about 0.02 to about 0.19, ? is from about 0.1 to about 0.4, ? is from about 0.35 to about 0.869, ? is from about 0.01 to about 0.2, ? is from 0.0 to about 0.1 and z is from about 0.01 to about 0.2, where A is Mg, Zn, Al, Ga, B, Zr, Ti, Ca, Ce, Y, Nb or combinations thereof.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: December 23, 2014
    Assignee: Envia Systems, Inc.
    Inventors: Sujeet Kumar, Herman Lopez, Subramanian Venkatachalam, Deepak Karthikeyan
  • Publication number: 20140370349
    Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; and a first porous supporting layer formed on the electrode active material layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surface thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Publication number: 20140370360
    Abstract: A secondary battery includes a first electrode, a second electrode, an ion transmission member in contact with the first electrode and the second electrode, and a hole transmission member in contact with the first electrode and the second electrode. Suitably, the first electrode contains a composite oxide. The composite oxide contains alkali metal or alkali earth metal. The composite oxide contains a p-type composite oxide as a p-type semiconductor.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 18, 2014
    Inventors: Si MENGQUN, Zhou YING
  • Publication number: 20140370359
    Abstract: A magnesium cell includes a positive electrode, a negative electrode including a magnesium alloy, and a separator disposed between the positive electrode and the negative electrode to hold an electrolytic solution, in which a contact area between the negative electrode and the separator is variable.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Inventors: Yuhei TATSUMOTO, Yasutaka Tanimura, Tomonobu Tamura, Hiroshi Hiraguchi
  • Publication number: 20140370389
    Abstract: A positive electrode active material includes: center cores containing a composite oxide containing alkali metal or alkali earth metal; and eutectic layers containing a eutectic substance composed of at least two types of composite oxides containing the alkali metal or the alkali earth metal and configured to cover the center cores. Preferably, the eutectic layers have a thickness of 4 nm or larger and 800 nm or smaller. The composite oxides forming the eutectic substance include the composite oxide of the center cores.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 18, 2014
    Applicant: GREENFUL NEW ENERGY CO., LTD.
    Inventors: Si MENGQUN, Zhou YING
  • Publication number: 20140363740
    Abstract: Solid state energy storage systems and devices are provided. A solid state energy storage devices can include an active layer disposed between conductive electrodes, the active layer having one or more quantum confinement species (QCS), such as quantum dots, quantum particles, quantum wells, nanoparticles, nanostructures, nanowires and nanofibers. The solid state energy storage device can have a charge rate of at least about 500 V/s and an energy storage density of at least about 150 Whr/kg.
    Type: Application
    Filed: July 10, 2012
    Publication date: December 11, 2014
    Applicant: QUANTUMSCAPE CORPORATION
    Inventors: Timothy P. Holme, Rainer Fasching, Joseph Han, Weston Arthur Hermann, Friedrich B. Prinz, Phil Reilly, Jagdeep Singh
  • Publication number: 20140356731
    Abstract: In a secondary battery, a negative electrode, an electrolytic solution for negative electrode, a diaphragm, an electrolytic solution for positive electrode, and a positive electrode are disposed in order. The negative electrode includes a negative-electrode active material that has an element whose oxidation-reduction potential is more “base” by 1.5 V or more than an oxidation-reduction potential of hydrogen, and whose volume density is larger than that of lithium metal. The diaphragm includes a solid electrolyte transmitting ions of said element alone. A secondary battery with high volumetric density is provided.
    Type: Application
    Filed: September 21, 2012
    Publication date: December 4, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Junichi Niwa, Masataka Nakanishi, Kazuhito Kawasumi, Masakazu Murase
  • Publication number: 20140349187
    Abstract: A secondary battery capable of obtaining superior battery characteristics is provided. The secondary battery of the present technology includes a cathode, an anode including an active material, and an electrolytic solution. The active material includes a core section and covering section, the core section being capable of inserting and extracting lithium ions, and the covering section being provided in at least part of a surface of the core section and being a low-crystalline or a noncrystalline. The core section includes Si and O as constituent elements, and an atom ratio x (O/Si) of O with respect to Si satisfies O?x<0.5. The covering section includes Si and O as constituent elements, and an atom ratio y (O/Si) of O with respect to Si satisfies 0.5?y?1.8. The covering section has voids, and a carbon-containing material is provided in at least part of the voids.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 27, 2014
    Inventors: Takakazu Hirose, Kenichi Kawase, Norihiro Shimoi, Shinji Tanaka
  • Publication number: 20140342229
    Abstract: Disclosed are a cathode active material for a lithium secondary battery, and a lithium secondary battery including the same. The disclosed cathode active material includes a core including a compound represented by Formula 1; and a shell including a compound represented by Formula 2, in which the core and the shell have different material compositions.
    Type: Application
    Filed: December 12, 2012
    Publication date: November 20, 2014
    Inventors: Byung-Sung Leo Kwak, Joseph G. Gordon, II, Omkaram Nalamasu, Yangkook Sun, Wongi Kim, Seugmin Oh
  • Publication number: 20140335409
    Abstract: A method is provided for fabricating a transition metal hexacyanometallate (TMHCM) electrode with a water-soluble binder. The method initially forms an electrode mix slurry comprising TMHCF and a water-soluble binder. The electrode mix slurry is applied to a current collector, and then dehydrated to form an electrode. The electrode mix slurry may additionally comprise a carbon additive such as carbon black, carbon fiber, carbon nanotubes, graphite, or graphene. The electrode is typically formed with TMHCM greater than 50%, by weight, as compared to a combined weight of the TMHCM, carbon additive, and binder. Also provided are a TMHCM electrode made with a water-soluble binder and a battery having a TMHCM cathode that is made with a water-soluble binder.
    Type: Application
    Filed: July 24, 2014
    Publication date: November 13, 2014
    Inventors: Long Wang, Yuhao Lu, Sean Vail
  • Publication number: 20140335407
    Abstract: A method for configuring a non-lithium-intercalation electrode includes intercalating an insertion species between multiple layers of a stacked or layered electrode material. The method forms an electrode architecture with increased interlayer spacing for non-lithium metal ion migration. A laminate electrode material is constructed such that pillaring agents are intercalated between multiple layers of the stacked electrode material and installed in a battery.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 13, 2014
    Inventors: Yan YAO, Yanliang LIANG