Manganese Component Is Active Material Patents (Class 429/224)
  • Patent number: 9099736
    Abstract: Provided is a cathode active material including lithium manganese-based oxide, wherein the lithium manganese-based oxide has a layered crystal structure, has a content of manganese (Mn) greater than contents of other transition metal(s), includes 1 mole or more of lithium (Li) with respect to 1 mole of lithium transition metal oxide, has a plateau potential range in which lithium deintercalation as well as oxygen release occurs during initial charging in a high voltage range of 4.4 V or more, has domains included in the layered crystal structure exhibiting electrochemical activity due to a structural change in a potential range of 3.5 V or less after the initial charging, and includes conductive materials for improving electrical conductivity of the lithium manganese-based oxide in a potential range of 3.5 V or less after the initial charging.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: August 4, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Song Taek Oh, Jung Hwan Park, Su Hwan Kim, Geun Chang Chung
  • Patent number: 9088051
    Abstract: A positive electrode protective layer composition of a rechargeable lithium battery includes a polymer compound and an ionic liquid including a borate-based anion. A rechargeable lithium battery includes the positive electrode protective layer. A method of manufacturing the same is also provided.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 21, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sae-Weon Roh, Yong-Chul Park, Sung-Soo Kim, So-Hyun Hur, In-Haeng Cho
  • Patent number: 9054379
    Abstract: A cathode composite material includes a cathode active material particle having a surface, and a continuous aluminum phosphate layer coated on the surface of the cathode active material particle. A material of the cathode active material particle is spinel type lithium manganese oxide. The present disclosure also relates to a lithium ion battery and a method for making the cathode composite material.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: June 9, 2015
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Xian-Kun Huang, Xiang-Ming He, Chang-Yin Jiang, Dan Wang, Jian Gao, Jian-Jun Li
  • Patent number: 9054374
    Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: June 9, 2015
    Assignee: Sony Corporation
    Inventors: Guohua Li, Nozomu Morita, Tomoyo Ooyama, Kiyohiko Suzuki, Kotaro Satori, Hideto Azuma, Yosuke Hosoya, Koji Morita, Haruo Watanabe
  • Patent number: 9048494
    Abstract: An electrolytic manganese dioxide improved for tool wear reduction, methods for preparing the improved electrolytic manganese dioxide and for preparing a positive-electrode precursor, and a primary battery are provided. One method includes displacement-washing neutralized electrolytic manganese dioxide with a solution including a corrosion inhibitor configured to be at a first predetermined concentration. The method further includes drying the washed electrolytic manganese dioxide to collect improved electrolytic manganese dioxide including the corrosion inhibitor configured to be at a second predetermined concentration within the improved electrolytic manganese dioxide to minimize corrosion of a metal material in contact with the improved electrolytic manganese dioxide. The corrosion inhibitor includes one of a benzoate salt, a phosphate salt, a carbonate salt, a metaborate salt, a tetraborate salt, a metaperiodate salt, and a meta-aluminate salt.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: June 2, 2015
    Assignee: ERACHEM COMILOG, INC.
    Inventors: John A. Teagle, Oliver Schilling
  • Patent number: 9039926
    Abstract: A production process for composite oxide expressed by a compositional formula: LiMn1-xAxO2, where “A” is one or more kinds of metallic elements other than Mn; and 0?“x”<1, obtained by preparing a raw-material mixture by mixing a metallic-compound raw material and a molten-salt raw material with each other, the metallic-compound raw material at least including an Mn-containing nitrate that includes one or more kinds of metallic elements in which Mn is essential, the molten-salt raw material including lithium hydroxide and lithium nitrate, and exhibiting a proportion of the lithium nitrate with respect to the lithium hydroxide (Lithium Nitrate/Lithium Hydroxide) that falls in a range of from 1 or more to 3 or less by molar ratio; reacting the raw-material mixture at 500° C. or less by melting it; and recovering the composite oxide being generated from the raw-material mixture that has undergone the reaction.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: May 26, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryota Isomura, Hitotoshi Murase, Naoto Yasuda
  • Publication number: 20150140429
    Abstract: A power storage device a positive electrode including a positive electrode active material layer and a negative electrode including a negative electrode active material layer. The positive electrode active material layer includes a plurality of particles of x[Li2MnO3]-(1?x)[LiCo1/3Mn1/3Ni1/3O2] (obtained by assigning 0.5 to x, for example) which is a positive electrode active material, and multilayer graphene with which the plurality of particles of the positive electrode active material are at least partly connected to each other. In the multilayer graphene, a plurality of graphenes are stacked in a layered manner. The graphene contains a six-membered ring composed of carbon atoms, a poly-membered ring which is a seven or more-membered ring composed of carbon atoms, and an oxygen atom bonded to one or more of the carbon atoms in the six-membered ring and the poly-membered ring, which is a seven or more-membered ring.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventors: Takahiro KAWAKAMI, Hiroatsu TODORIKI, Teppei OGUNI, Takeshi OSADA, Shunpei YAMAZAKI
  • 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: 20150132626
    Abstract: An electrode assembly and a secondary battery using the same are disclosed. The electrode assembly includes a positive electrode, a negative electrode, and a lithium ion conductor layer disposed at least in one of between the positive electrode and the negative electrode, on an outer surface of the positive electrode, and on an outer surface of the negative electrode, to improve thermal safety of the secondary battery.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 14, 2015
    Inventors: Young-Jin Park, Do-Hyung Park, Ki-Hyun Kim, Min-Han Kim, Sang-Hoon Kim, Yu-Mi Song, Sun-Ho Kang, Kwang-Hwan Cho
  • Publication number: 20150132650
    Abstract: A magnesium electrochemical cell having a positive electrode containing as an active ingredient, an amorphous material of formula [V2O5]c[MgXy]d[MaOb]e is provided. In the formula M is an element selected from the group consisting of P, B, Si, Ge and Mo, and X is O, F, Cl, Br or I.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori MIZUNO, Ruigang Zhang, Jason Germain, Keiko Kato, Timothy Sean Arthur
  • Publication number: 20150132666
    Abstract: There is provided a positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode being capable of improving the charge-discharge cycle characteristics of the nonaqueous electrolyte secondary battery. A positive electrode 12 of a nonaqueous electrolyte secondary battery 1 contains positive electrode active material particles. The positive electrode active material particles contain a lithium-containing transition metal oxide. The lithium-containing transition metal oxide has a crystal structure that belongs to the space group P63mc. A compound of at least one selected from the group consisting of boron, zirconium, aluminum, magnesium, titanium, and a rare-earth element is attached to surfaces of the positive electrode active material particles.
    Type: Application
    Filed: December 28, 2012
    Publication date: May 14, 2015
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Atsushi Ogata, Takeshi Ogasawara, Yasufumi Takahashi, Motoharu Saito, Masaki Hirase, Katsunori Yanagida, Masahisa Fujimoto
  • Patent number: 9027242
    Abstract: A method of manufacturing an electrical device comprises the steps of providing a substrate, providing an electrical component on the substrate, providing a first electrical contact on the substrate that is electrically connected to the electrical component, and providing an electrochemical cell on or integrating the substrate for providing electrical energy to said electrical component. The electrochemical cell comprises at least one electrochemical layer comprising a cured or dried ink and a first electrode contact electrically connected to said at least one electrochemical layer. The method further includes the step of securing the electrochemical cell to the substrate through an electrically conductive connection that provides both a structural connection and an electrical connection between the first electrical contact and the first electrode contact.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: May 12, 2015
    Assignee: Blue Spark Technologies, Inc.
    Inventor: Gary R. Tucholski
  • Publication number: 20150125751
    Abstract: To simply manufacture a lithium-containing oxide at lower manufacturing cost. A method for manufacturing a lithium-containing composite oxide expressed by a general formula LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)). A solution containing Li and P is formed and then is dripped in a solution containing M (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) to form a mixed solution. By a hydrothermal method using the mixed solution, a single crystal particle of a lithium-containing composite oxide expressed by the general formula LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) is manufactured.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 7, 2015
    Inventor: Tomoya FUTAMURA
  • Publication number: 20150125749
    Abstract: The present invention relates to a novel phosphate based composite anode material, preparation method and uses thereof. Specifically disclosed is a phosphate based composite cell anode material, the material having monoclinic and orthorhombic crystal lattice structures with the chemical formula of A3-xV2-yMY(PO4)3, wherein A is Li+, Na+ or the mixture thereof, M is Mg, Al, Sc, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn or Nb, 0?x?3.0, 0?y?2.0, and C is the carbon layer. Also disclosed are a preparation method and uses of the composite material. Unlike simple physical mixing, the composite material of the present invention has the advantages of an adjustable electric potential plateau, high reversible capacity, good cycle stability, power consumption early warning and the like.
    Type: Application
    Filed: September 12, 2012
    Publication date: May 7, 2015
    Applicant: Ningbo Institute of Materials & Engineering, Chinese Academy of Sciences
    Inventors: Yuanhao Tang, Chenyun Wang, Deyu Wang, Jun Li
  • Patent number: 9023524
    Abstract: Disclosed is a lithium mixed metal oxide which is useful for a positive electrode active material that is capable of providing a nonaqueous electrolyte secondary battery having more excellent cycle characteristics, in particular, more excellent cycle characteristics during high-temperature operation at 60 DEG C. or the like. Specifically disclosed is a lithium mixed metal oxide represented by the following formula (A). Lix(Mn1-y-zNiyFez)O2 (A) (In the formula, x is not less than 0.9 and not more than 1.3; y is 0.46 or more and less than 0.5; and z is 0 or more and less than 0.1.) Also disclosed are: a positive electrode active material which comprises the lithium mixed metal oxide; a positive electrode which comprises the positive electrode active material; and a nonaqueous electrolyte secondary battery which comprises the positive electrode.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: May 5, 2015
    Assignee: Sumitomo Chemical Company, Limted
    Inventors: Yuichiro Imanari, Cedric Pitteloud
  • Publication number: 20150118563
    Abstract: The present invention discloses a lithium-rich positive electrode material, a lithium battery positive electrode, and a lithium battery. The lithium-rich positive electrode material has a coating structure, where a general structural formula of a core of the coating structure is as follows: z[xLi2MO3·(1?x)LiMeO2]·(1?z)Li1+dMy2?dO, where in the formula, 0<x<1, 0<z<1, and 0<d<?; M is at least one of Mn, Ti, Zr, and Cr, Me is at least one of Mn, Co, Ni, Ti, Cr, V, Fe, Al, Mg, and Zr, and My is at least one of Mn, Ni, and Co; and a coating layer of the coating structure is a compound whose general formula is MmMz, where in the formula, Mm is at least one of Zn, Ti, Zr, and Al, and Mz is O or F. The lithium battery positive electrode and the lithium battery both include the lithium-rich positive electrode material.
    Type: Application
    Filed: December 31, 2014
    Publication date: April 30, 2015
    Inventor: Chaohui Chen
  • Publication number: 20150118565
    Abstract: A novel lithium battery cathode, a lithium ion battery using the same and processes and preparation thereof are disclosed. The battery cathode is formed by force spinning. Fiber spinning allows for the formation of core-shell materials using material chemistries that would be incompatible with prior spinning techniques. A fiber spinning apparatus for forming a coated fiber and a method of forming a coated fiber are also disclosed.
    Type: Application
    Filed: May 7, 2012
    Publication date: April 30, 2015
    Applicant: The Board of Regents, The University of Texas System
    Inventors: Nelson S. Bell, Nancy A. Missert, Karen Lozano, Yatinkumar N. Rane
  • Publication number: 20150118558
    Abstract: An electrode material of the present invention includes surface-coated LixAyDzPO4 particles obtained by coating surfaces of LixAyDzPO4 (in which, A represents one or more selected from the group consisting of Co, Mn, Ni, Fe, Cu and Cr, D represents one or more selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, Y and rare earth elements, 0<x?2, 0<y?1, and 0?z?1.5) particles with a carbonaceous coat, and an elution amount of Li is in a range of 200 ppm to 700 ppm and an elution amount of P is in a range of 500 ppm to 2000 ppm when the surface-coated LixAyDzPO4 particles are immersed in a sulfuric acid solution having a hydrogen-ion exponent of 4 for 24 hours.
    Type: Application
    Filed: January 22, 2013
    Publication date: April 30, 2015
    Inventors: Akinori Yamazaki, Yoshitaka Yamamoto, Takao Kitagawa, Hirofumi Yasumiishi
  • Publication number: 20150118562
    Abstract: A rechargeable lithium ion battery includes a positive electrode including a positive active material; negative electrode; and electrolyte, wherein the rechargeable lithium ion battery is used at a voltage of less than about 4.5 V, and activated by performing a first cycle charging at a voltage of greater than or equal to about 4.55 V, the positive active material is a ternary-component positive active material including a Li2MnO3-based solid solution, and an average primary particle diameter of the Li2MnO3-based solid solution ranges from about 50 to about 300 nm.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Masatsugu Nakano, Yuki Takei, Keisuke Nomura
  • Publication number: 20150118561
    Abstract: There is provided a process for preparing a crystalline electrode material, the process comprising: providing a liquid bath comprising the electrode material in a melted state; and introducing a precursor of the electrode material into the liquid bath, wherein the electrode material comprises lithium, a metal and phosphate. There is also provided a crystalline electrode material, comprising lithium substituted by less than 0.1 atomic of Na or K; Fe and/or Mn, substituted by less than 0.1 atomic ratio of: (a) Mg, Ca, Al and B, (b) Nb, Zr, Mo, V and Cr, (c) Fe(III), or (d) any combinations thereof; and PO4, substituted by less than 20% atomic weight of an oxyanion selected from SO4, SiO4, BO4, P2O7, and any combinations thereof, the material being in the form of particles having a non-carbon and non-olivine phase on at least a portion of the surface thereof.
    Type: Application
    Filed: May 28, 2013
    Publication date: April 30, 2015
    Inventors: Michel Gauthier, Dean MacNeil, Joseph Wontcheu, Patrice Chartrand, Guoxian Liang
  • Patent number: 9017841
    Abstract: Disclosed is a method for preparing an electrochemical device, comprising the steps of: charging an electrochemical device using an electrode active material having a gas generation plateau potential in a charging period to an extent exceeding the plateau potential; and degassing the electrochemical device. An electrochemical device, which comprises an electrode active material having a gas generation plateau potential in a charging period, and is charged to an extent exceeding the plateau potential and then degassed, is also disclosed.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: April 28, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyun Chang, Eui Yong Bang, Min Chul Jang, Sang Hoon Choy, Ki Young Lee
  • 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: 9012085
    Abstract: A lithium battery (1) including a positive electrode (10) containing low-crystallinity manganese dioxide having a specific surface area of 8 to 28 m2/g as a positive electrode active material, a negative electrode (11) containing metallic lithium or a lithium alloy as a negative electrode active material, and an organic electrolyte is provided. The lithium battery (1), due to said low-crystallinity manganese dioxide contained therein, has excellent storage characteristics at high temperatures of 100° C. or higher, large-current discharge characteristics, large-current pulse discharge characteristics, low-temperature discharge characteristics, and like characteristics, and in addition, is cost advantageous.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: April 21, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Kenichi Morigaki
  • Publication number: 20150104706
    Abstract: The disclosure provides a Ni—Mn composite oxalate powder, including a plurality of biwedge octahedron particles represented by the general formula: NiqMnxCoyMzC2O4.nH2O, wherein q+x+y+z=1, 0<q, x<1, 0?y<1, 0?z<0.15, 0?n?5, and M is at least one of Mg, Sr, Ba, Cd, Zn, Al, Ga, B, Zr, Ti, Ca, Ce, Y, Nb, Cr, Fe and V. The above powder may be further calcined with a lithium salt to form a lithium transition metal oxide powder for use as a positive electrode material in lithium ion-batteries.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 16, 2015
    Applicants: NATIONAL TAIWAN UNIVERSITY, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hung-Chun WU, Yu-Ting CHEN, Nae-Lih WU, Wen-Chin CHEN, Shih-Chieh LIAO, Yih-Chyng WU
  • Publication number: 20150099159
    Abstract: A positive electrode active material includes LiMn1-xMxPO4 (wherein M represents at least one element selected from Mg, Fe, Ni, Co, Ti, and Zr; and 0?x<0.5) and has an average pore diameter of 8 nm or more and not more than 25 nm and a total pore volume of 0.05 cm3/g or more and not more than 0.3 cm3/g.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: Keigo HOSHINA, Hiroki INAGAKI, Norio TAKAMI, Kiyoshi KANAMURA
  • Publication number: 20150099178
    Abstract: The volume density or weight density of lithium ions that can be received and released in and from a positive electrode active material is increased to achieve high capacity and high energy density of a secondary battery. In a lithium manganese composite oxide, each particle includes a first region including a crystal with a layered rock-salt crystal structure and a second region including a crystal with a spinel crystal structure. The second region is in contact with the outside of the first region. The lithium manganese composite oxide has high structural stability and high capacity.
    Type: Application
    Filed: September 22, 2014
    Publication date: April 9, 2015
    Inventors: Takahiro KAWAKAMI, Tatsuya IKENUMA, Satoshi SEO
  • Publication number: 20150099176
    Abstract: A positive electrode active material includes LiMn1?xMxPO4 (wherein M represents at least one element selected from Mg, Fe, Ni, Co, Ti, and Zr; and 0?x<0.5); and 0.03% by weight or more and not more than 0.5% by weight of S (sulfur) and 0.03% by weight or more and not more than 0.5% by weight of N (nitrogen) relative to the weight of LiMn1?xMxPO4.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: Keigo HOSHINA, Hiroki INAGAKI, Norio TAKAMI, Kiyoshi KANAMURA
  • 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
  • Publication number: 20150099160
    Abstract: According to one embodiment, a negative electrode active material for nonaqueous electrolyte battery includes a titanium oxide compound having a crystal structure of monoclinic titanium dioxide. When a monoclinic titanium dioxide is used as the active material, the effective capacity is significantly lower than the theoretical capacity though the theoretical capacity was about 330 mAh/g. The invention comprises a titanium oxide compound which has a crystal structure of monoclinic titanium dioxide and a (001) plane spacing of 6.22 ? or more in the powder X-ray diffraction method using a Cu-K? radiation source, thereby making an attempt to improve effective capacity.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: Yasuhiro HARADA, Norio TAKAMI, Hiroki INAGAKI, Keigo HOSHINA
  • Publication number: 20150099179
    Abstract: To increase the volume density or weight density of lithium ions that can be received and released in and from a positive electrode active material to achieve high capacity and high energy density of a secondary battery. A lithium manganese composite oxide represented by LixMnyMzOw that includes a region belonging to a space group C2/c and is covered with a carbon-containing layer is used as the positive electrode active material. The element M is an element other than lithium and manganese. The lithium manganese composite oxide has high structural stability and high capacity.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 9, 2015
    Inventors: Tatsuya IKENUMA, Shuhei YOSHITOMI, Takahiro KAWAKAMI, Yumiko YONEDA (Former family: SAITO), Yohei MOMMA
  • Publication number: 20150099177
    Abstract: A nonaqueous electrolyte secondary battery disclosed in the present application includes: a positive electrode capable of absorbing and releasing lithium, containing a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystalline structure; and a negative electrode capable of absorbing and releasing lithium, containing a negative electrode active material composed of a lithium-containing transition metal oxide obtained by substituting some of Ti element of a lithium-containing titanium oxide having a spinel crystalline structure with one or more element different from Ti, wherein a retention of the negative electrode is set to be greater than a retention of the positive electrode, and an irreversible capacity rate of the negative electrode is set to be greater than an irreversible capacity rate of the positive electrode, whereby a discharge ends by negative electrode limitation.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 9, 2015
    Inventors: Natsumi GOTO, Takashi TAKEUCHI, Masaki HASEGAWA
  • 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
  • Patent number: 8999584
    Abstract: A Li-ion battery is disclosed, the Li-ion battery including an anode, a cathode, a lithium donor formed from a Li-containing material, and an electrolyte in communication with the anode, the cathode, and the lithium donor. The lithium donor may be incorporated into the anode, incorporated into the cathode, a layer formed on either an anode side or a cathode side of a separator of the battery. The lithium donor is formed from Li-containing material insensitive to oxygen and aqueous moisture.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Meng Jiang, Xingcheng Xiao, Mei Cai, Li Yang, Bob R. Powell, Jr.
  • Publication number: 20150093647
    Abstract: A battery includes a positive electrode, a negative electrode including a negative active material layer containing hardly-graphitizable carbon as a negative active material and an aqueous binder, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative active material layer has a density of not less than 0.81 g/cc and not more than 1.01 g/cc. The negative active material has a particle size D90 of not less than 1.9 ?m and not more than 11.5 ?m, the particle size D90 being a particle size at which the cumulative volume is 90% in the particle size distribution.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Tomonori KAKO, Sumio MORI, Akihiko MIYAZAKI, Kenta NAKAI
  • 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
  • Publication number: 20150093644
    Abstract: A sodium manganese composite oxide represented by Formula 1: NaxMayMnzMbvO2+d ??Formula 1 wherein, 0.2?x?1, 0<y?0.2, 0<z?1, 0?v<1, 0<z+v?1, ?0.3?d<1, Ma is an electrochemically inactive metal, and Mb is different from Ma and Mn, and is at least one transition metal selected from elements in Groups 4 to 12 of the periodic table of the elements.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Dongwook Han, Seoksoo Lee, Guesung Kim, Ryounghee Kim, Kwangjin Park, Wonseok Chang
  • Publication number: 20150093646
    Abstract: A positive-electrode active material for a non-aqueous electrolyte secondary battery according to the present disclosure contains a layered lithium(Li)-containing transition metal composite oxide that contains Li in the transition metal layer and more than 0.4 ?mol/g and less than 25 ?mol/g of iodine (I) or bromine (Br).
    Type: Application
    Filed: September 18, 2014
    Publication date: April 2, 2015
    Inventor: HIROSHI KAWADA
  • Patent number: 8993168
    Abstract: Disclosed is a powder comprising a lithium-containing compound and a nickel-containing mixed metal compound, and satisfying the following requirements of (1) and (2) when the powder is analyzed by plasma emission spectrometry of particles: (1) an absolute deviation of a synchronous distribution chart against an approximated straight-line is 0.10 or less, wherein the approximated straight-line is evaluated from a synchronous distribution chart obtained by plotting an emission intensity of lithium and an emission intensity of nickel of each particle composing of the powder, and (2) a release rate of lithium evaluated by the following formula is 80 or less: Release rate of lithium=(nb/na)×100 wherein, na is the number of particles containing lithium in the powder, and nb is the number of particles containing lithium and not containing nickel in the powder.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 31, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Shimano, Kensaku Horie, Toshinori Isobe
  • Patent number: 8993169
    Abstract: A positive electrode composition is presented. The composition includes at least one electroactive metal; at least one alkali metal halide; and at least one additive including a plurality of nanoparticles, wherein the plurality of nanoparticles includes tungsten carbide. An energy storage device, and a related method for the preparation of an energy storage device, are also presented.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 31, 2015
    Assignee: General Electric Company
    Inventors: Richard Louis Hart, Michael Alan Vallance, David Charles Bogdan, Jr.
  • 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
  • Publication number: 20150086865
    Abstract: The present invention provides a positive electrode for a secondary battery that can suppress a phenomenon in which, after the solid electrolyte interface is formed once, when a damaged portion where a solid electrolyte interface is partially broken happens to arise in the solid electrolyte interface, the continued deterioration in the performance of charge-discharge cycle of the secondary battery is induced thereby, and a secondary battery using said positive electrode for a secondary battery. The positive electrode for a secondary battery according to the present invention comprises water that is chemically adsorbed beforehand in the positive electrode, wherein the concentration of the chemically adsorbed water, which is comprised in the positive electrode beforehand, is set in the range of 0.03% by mass to 0.15% by mass based on the positive electrode.
    Type: Application
    Filed: April 12, 2013
    Publication date: March 26, 2015
    Applicant: NEC ENERGY DEVICES, LTD.
    Inventor: Noriaki Oda
  • Publication number: 20150086841
    Abstract: According to one embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a separator, a copper-containing member, and a nonaqueous electrolyte is provided. The negative electrode includes a negative electrode current collector and a negative electrode active material-containing layer. The negative electrode current collector includes aluminum or aluminum alloy. The negative electrode active material-containing layer is formed on the negative electrode current collector. The copper-containing member includes copper or copper alloy. The copper-containing member is electrically connected to the negative electrode current collector to prevent from over-discharge.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Norio TAKAMI, Hiroki INAGAKI, Wen ZHANG
  • Patent number: 8986890
    Abstract: A cathodal material for lithium cells comprises a porous lithium oxide microparticle is provided. The porous lithium oxide microparticle comprises a plurality of porous lithium oxide nanoparticles formed with a first conductive layer therein, a pore defined by connecting the lithium oxide nanoparticles, a second conductive layer covering at least a surface of one of the lithium oxide nanoparticles contacting the first conductive layer and forming a three-dimensional conductive network between the lithium oxide nanoparticles, and a conductive fiber connecting with the second conductive layer.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: March 24, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Jin-Ming Chen, Chia-Haw Hsu, Yu-Run Lin, Mei-Hui Hsiao, Tu Chen
  • Patent number: 8986884
    Abstract: A lithium-ion secondary battery comprising a positive electrode and a negative electrode is provided. The positive electrode comprises as a positive electrode active material a lithium transition metal composite oxide having a layered structure. The composite oxide contains as its metal components at least one species of Ni, Co and Mn as well as W and Ca. The composite oxide contains 0.26 mol % or more, but 5 mol % or less of W and Ca combined when all the metal elements contained in the oxide excluding lithium account for a total of 100 mol %, with the ratio (mW/mCa) of the number of moles of W contained, mW, to the number of moles of Ca contained, mCa, being 2.0 or larger, but 50 or smaller.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: March 24, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Nagai
  • Patent number: 8986881
    Abstract: An energy storage element, wherein a non-aqueous electrolyte contains lithium difluorobis(oxalato)phosphate that is a first additive represented by Formula (1): and lithium tetrafluorooxalatophosphate that is a second additive represented by Formula (2): wherein the amount of the first additive to be added is not less than 0.3% by weight and not more than 1.0% by weight based on the total weight of the non-aqueous electrolyte, and the amount of the second additive to be added is not less than 0.05 times and not more than 0.3 times the amount of the first additive to be added.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 24, 2015
    Assignee: GS Yuasa International Ltd.
    Inventors: Tomonori Kako, Sumio Mori, Kenta Nakai, Akihiko Miyazaki
  • 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: 20150079474
    Abstract: Disclosed herein is a high voltage cathode active material and a method for preparing the same. The cathode active material includes particles of a spinel-type compound having a composition represented by Formula (1) and a carbon-based material present on surfaces of the particles of the spinel-type compound: Li1+aMxMn2?xO4?zAz ??(1) where ?0.1?a?0.1, 0.3?x?0.8 and 0?z?0.1.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Byung Chun Park, Seong Hoon Kang, Minsuk Kang, Wang Mo Jung, Ho Suk Shin, Sang Min Park, Geungi Min
  • Publication number: 20150079473
    Abstract: Disclosed are a cathode active material for high voltage and a lithium secondary battery including the same. More particularly, a cathode active material including spinel-type compound particles having a composition represented by Formula 1 below; and metal oxides or metal hydroxides present on surfaces of the spinel-type compound particles, and a lithium secondary battery including the same. Li1+aMxMn2?xO4?zAz ??(1) where a, x and z are defined in a specification of the present invention.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Minsuk Kang, Seong Hoon Kang, Ho Suk Shin, Byung Chun Park, Sang Min Park, Geungi Min
  • Patent number: 8980475
    Abstract: Process for preparing lithium mixed metal oxides which comprise essentially lithium, manganese, cobalt and nickel as metal atoms and have a stoichiometric ratio of lithium to the total transition metals of greater than 1, which comprises a) the preparation of a mixture designated as intermediate (B) which comprises essentially lithium-comprising mixed metal hydroxides and lithium-comprising mixed metal oxide hydroxides, where manganese, cobalt and nickel are comprised in the ratio (1-a-b):a:b and the oxidation state averaged over all ions of manganese, cobalt and nickel is at least 4-1.75a-1.75b, where 0?a?0.5 and 0.1?b?0.8, by a thermal treatment carried out with continual mixing and in the presence of oxygen of a mixture (A) comprising at least one transition metal compound and at least one lithium salt (L), during which L does not melt, and b) the thermal treatment carried out without mixing and in the presence of oxygen of the intermediate (B).
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: March 17, 2015
    Assignee: BASF SE
    Inventors: Simon Schroedle, Hartmut Hibst, Jordan Keith Lampert, Mark Schweter, Ivan Petrovic
  • 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