Having Utility As A Reactive Material In An Electrochemical Cell; E.g., Battery, Etc. Patents (Class 252/182.1)
  • Patent number: 10811682
    Abstract: To provide a cathode active material capable of obtaining a lithium ion secondary battery which has a high discharge capacity and of which a decrease of the discharge capacity when a charge and discharge cycle is repeatedly carried out is suppressed, a positive electrode for a lithium ion secondary battery, and a lithium ion secondary battery. A cathode active material comprising a lithium-containing composite oxide represented by the formula aLi(Li1/3Mn2/3)O2.(1?a)LiMO2 (wherein M is an element containing at least Ni and Mn, and 0<a<1), wherein in an X-ray diffraction pattern, the integral breadth of a peak of (110) plane assigned to a crystal structure with space group C2/m is at most 1.25 deg.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 20, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Sakai
  • Patent number: 10797318
    Abstract: A positive active material is provided. The positive active material may include lithium, an additive metal, and at least one of nickel, cobalt, manganese, or aluminum. The additive metal may include an element different from nickel, cobalt, manganese, and aluminum, and an average content of the additive metal may be less than 2 mol %.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: October 6, 2020
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Yang-Kook Sun, Gang-Jun Park, Un Hyuck Kim
  • Patent number: 10777841
    Abstract: Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon and SiO; and wherein, for the anode active material particles, a value A obtained by the following formula (1) is 6.1 or more and 54.8 or less: A=SBET×dmed×D??Formula (1) where SBET is a BET specific surface area (m2/g) of the anode active material particles; dmed is a median diameter D50 (?m) of the anode active material particles; and D is a density (g/cm3) of the anode active material particles.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 15, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsutoshi Otaki, Norihiro Ose, Shigenori Hama, Kazuyuki Taniguchi, Yoshiyasu Yamada, Tetsuo Nakanishi
  • Patent number: 10770748
    Abstract: Provided is a lithium-selenium battery, comprising a cathode, an anode, and a porous separator/electrolyte assembly, wherein the anode comprises an anode active layer containing lithium or lithium alloy as an anode active material, and the cathode comprises a cathode active layer comprising a selenium-containing material, wherein an anode-protecting layer is disposed between the anode active layer and the separator/electrolyte and/or a cathode-protecting layer is disposed between the cathode active layer and the separator/electrolyte; the protecting layer contains a composite comprising from 0.01% to 50% by weight of a conductive reinforcement material dispersed in a sulfonated elastomeric matrix material and has a thickness from 1 nm to 100 ?m, a fully recoverable tensile strain from 2% to 500%, a lithium ion conductivity from 10?7 S/cm to 5×10?2 S/cm, and an electrical conductivity from 10?7 S/cm to 100 S/cm.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: September 8, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10763495
    Abstract: The conductivity of a zinc negative electrode is enhanced through use of surfactant-coated carbon fibers. Carbon fibers, along with other active materials such as bismuth oxide, zinc etc., form an electronically conductive matrix in zinc negative electrodes. Zinc negative electrodes as described herein are particularly useful in nickel zinc secondary batteries.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: September 1, 2020
    Assignee: ZincFive Power, Inc.
    Inventors: Jeffrey Phillips, Samaresh Mohanta, Deepan Chakkaravarthi Bose, Cecilia Maske
  • Patent number: 10756485
    Abstract: A connector includes a housing; and a fitting assurance member slidably attached to an outer side of the housing. The housing has a locking portion to be locked to the locked portion during a movement of the housing in a fitting direction to the counterpart housing. The fitting assurance member slides and moves relatively to the housing in the fitting direction from a temporary locking position to a formal locking position. The housing has an unlocking operation portion to apply unlocking force to the locking portion. The fitting assurance member has a pair of side walls on the outer side of the housing and a coupling portion connecting end portions of the pair of side walls. The coupling portion is located between the unlocking operation portion and the housing and separated from the unlocking operation portion.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: August 25, 2020
    Assignee: YAZAKI CORPORATION
    Inventors: Ryosuke Ohfuku, Takahiro Ohmoto, Masaru Shinmura, Yu Saito, Yuki Goto, Takashi Endo, Kazuyuki Iwashita, Akihiro Tsuruta, Shinji Kodama
  • Patent number: 10744485
    Abstract: The MOF-derived porous carbon materials for carbon dioxide capture, more specifically comprising a method for preparing thereof and the porous carbon materials for the purpose of CO2 absorbent, wherein the porous carbon materials from zinc-containing three MOFs (MOF-5, MOF-177, and bioMOF-100) are synthesized by a simple pyrolysis and thereby the porous carbon materials have promising CO2 capture capacity and selectivity compared to parent of MOFs prior to pyrolysis, particularly, the CO2 capture capacity of the porous carbon materials is maintained under humid condition.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 18, 2020
    Assignee: INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventor: Chang Yeon Lee
  • Patent number: 10741839
    Abstract: Electrode materials for electrochemical cells and batteries and methods of producing such materials are disclosed herein. A method of preparing an active lithium metal oxide material suitable for use in an electrode for a lithium electrochemical cell comprises the steps of: (a) contacting the lithium metal oxide material with an aqueous acidic solution containing one or more metal cations; and (b) heating the so-contacted lithium metal oxide from step (a) to dryness at a temperature below 200° C. The metal cations in the aqueous acidic solution comprise one or more metal cations selected from the group consisting of an alkaline earth metal ion, a transition metal ion, and a main group metal ion.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: August 11, 2020
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Jason Croy, Arturo Gutierrez, Michael M. Thackeray, Meinan He
  • Patent number: 10741840
    Abstract: A cathode active material includes a secondary particle including an aggregate of a plurality of primary particles, wherein the secondary particle includes a nickel-containing lithium transition metal oxide having a layered crystal structure, wherein the plurality of primary particles includes a first primary particle having a size greater than about 400 nanometers, a second primary particle having a size less than about 150 nanometers, and a third primary particle having a size of about 150 nanometers to about 400 nanometers, wherein the third primary particle has a area of greater than or equal to about 80% of a total area of the plurality of primary particles, and wherein the secondary particle has a porosity of less than or equal to about 10% of a total area of the cathode active material.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 11, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Dongjin Ham, Jayhyok Song, Andrei Kapylou, Jinhwan Park, Youhwan Son, San Moon, Sungjin Ahn, Donghee Yeon, Jinsu Ha, Kwangjin Park, Byungjin Choi
  • Patent number: 10741841
    Abstract: Disclosed are an electrode active material having improved energy density and a lithium secondary battery including the same. More particularly, provided is an electrode active material including a first electrode active material and a second electrode active material, each of the first electrode active material and the second electrode active material having a composition represented by Formula (1) below, a ratio of lithium to metals in the first electrode active material being 1.4 to 1.7, and a ratio of lithium to metals in the second electrode active material being 1.2 or more and less than 1.4: (1?x)LiM?O2?yAy?xLi2MnO3?y?Ay???(1) wherein M? is MnaMb; M is at least one selected from the group consisting of Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn and Period II transition metals; A is at least one selected from the group consisting of anions such as PO4, BO3, CO3, F and NO3; 0<x<1; 0<y?0.02; 0<y??0.02; 0.5?a?1.0; 0?b?0.5; and a+b=1.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: August 11, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hoe Jin Hah, Kyoung Ho Kim, Il Hong Kim, Je Young Kim
  • Patent number: 10723846
    Abstract: A process for preparing a polymeric composition for forming a lithium-ion or sodium-ion battery electrode or a supercapacitor electrode or for exhibiting magnetic properties, to such a polymeric composition obtained by means of this process, to a mixture which is a precursor of the composition, obtained by means of a first mixing step of the process, and to this electrode. The process for preparing this composition comprises: a) hot-mixing, via the melt process and without solvent, at least one active material, a binder-forming polymeric phase and a sacrificial polymeric phase so as to obtain a mixture, and b) at least partially eliminating said sacrificial polymeric phase so as to obtain said composition which comprises the active material(s) according to a weight fraction greater than 80%. The sacrificial phase is used in step a) according to a weight fraction in the mixture being greater than or equal to 15%.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: July 28, 2020
    Assignee: HUTCHINSON
    Inventors: Philippe Sonntag, David Ayme-Perrot, Bruno Dufour, Arnaud Prebe, Nicolas Garois
  • Patent number: 10692622
    Abstract: A composite including: silicon (Si); a silicon oxide of the formula SiOx, wherein 0<x<2; and a graphene disposed on the silicon oxide.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 23, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inhyuk Son, Hyunjae Song, Inyong Song, Jaeman Choi, Seungsik Hwang, Junhwan Ku, Jonghwan Park, Yeonji Chung
  • Patent number: 10693136
    Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in a internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 23, 2020
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Dong Hee Kim, Suk Yong Jeon, Hyun Jong Yu, Kyoung Jun Lee, Young Nam Park
  • Patent number: 10673067
    Abstract: A method for producing a positive electrode material for non-aqueous secondary batteries includes: performing a heat treatment on zirconium boride particles in an oxygen-containing atmosphere at a heat treatment temperature of not less than 220° C. and not more than 390° C., thereby obtaining heat-treated particles; and mixing the heat-treated particles with a positive electrode active material which contains a lithium transition metal complex oxide particles including at least one of cobalt and nickel in a composition thereof and having a layered structure, such that a content of the heat-treated particles relative to the lithium transition metal complex oxide particles is, as zirconium, not less than 0.25 mol % and not more than 2.2 mol %, thereby obtaining a positive electrode material for non-aqueous secondary batteries.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 2, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Keisuke Fujihara
  • Patent number: 10658669
    Abstract: A rechargeable alkali metal battery comprising: (a) an anode comprising an alkali metal layer and a dendrite penetration-resistant layer comprising an amorphous carbon or polymeric carbon matrix, an optional carbon or graphite reinforcement phase dispersed in this matrix, and a lithium- or sodium-containing species that are chemically bonded to the matrix and/or the optional carbon or graphite reinforcement to form an integral layer that prevents dendrite penetration, wherein the lithium- or sodium-containing species is selected from Li2CO3, Li2O, Li2C2O4, LiOH, LiX, ROCO2Li, HCOLi, ROLi, (ROCO2Li)2, (CH2OCO2Li)2, Li2S, LixSOy, Na2CO3, Na2O, Na2C2O4, NaOH, NaX, ROCO2Na, HCONa, RONa, (ROCO2Na)2, (CH2OCO2Na)2, Na2S, NaxSOy, or a combination thereof, wherein X?F, Cl, I, or Br, R=a hydrocarbon group, x=0-1, y=1-4; (b) a cathode; and (c) a separator and electrolyte component; wherein the dendrite penetration-resistant layer is disposed between the alkali metal layer and the separator.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 19, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10658664
    Abstract: The present invention relates to a method for producing lithium-nickel-manganese-based transition metal oxide particles, the transition metal oxide particles which are obtained with the method, and the use thereof as electrode material. The present invention particularly relates to lithium-nickel-manganese-based transition metal oxide particles in over-lithiated form with high tamped density, a method for production thereof and use thereof as cathode material in lithium secondary batteries.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 19, 2020
    Assignee: ZENTRUM FUR SONNENENERGIE UND WASSERSTOFF FORSCHUNG BADEN-WURTTEMBERG GEMEINNUTZIGE STIFTUNG
    Inventors: Margret Wohlfahrt-Mehrens, Peter Axmann, Giulio Gabrielli, Marilena Mancini, Wolfgang Weirather
  • Patent number: 10644312
    Abstract: A crystalline precursor compound is described for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1?a((Niz(Ni1/4 Mn1/4)y M?x)1?kAk)1+aO2, wherein x+y+z=1, 0<x?0.2, 0.55<z?0.90, M? is either one or both of Co and Al, A is a dopant, 0?k?0.1, and 0.05?a?0.40, wherein the precursor an integrated intensity ratio I003/I104<1, wherein I003 and I104 are the peak intensities of the Bragg peaks (003) and (104) of the XRD pattern of the crystalline precursor compound. Also a method is described for manufacturing a positive electrode material having a general formula Li1?aM1?a?O2, with M=(Niz(Ni1/2 Mn1/2)y M?x)1?k Ak), wherein x+y+z=1, 0<x?0.2, 0.55<z?0.90, M? is either one or both of Co and Al, A is a dopant, 0?k?0.1 and 0.01<a?<0.10 by sintering the crystalline precursor compound in an oxidizing CO2-free atmosphere at a temperature T between 750 and 950° C.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 5, 2020
    Assignees: UMICORE, UMICORE KOREA, LTD.
    Inventors: Maxime Blangero, DongGun Park, Jens Paulsen, Jing Zhang
  • Patent number: 10629907
    Abstract: A lithium ion secondary battery with a high capacity retention rate, and a method for producing the lithium ion secondary battery. The lithium ion secondary battery may comprise a cathode including a cathode active material layer comprising a cathode active material and Li3PO4, an anode including an anode active material layer comprising an anode active material, and an electrolyte layer being disposed between the cathode and the anode and comprising a liquid electrolyte, wherein a C1s element ratio obtained by X-ray photoelectron spectroscopy measurement of the Li3PO4 is 18.82 at % or less.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: April 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohei Shindo, Yoichi Koike
  • Patent number: 10615407
    Abstract: An energy storage device comprising a cathode comprising: (i) an Fe source; (ii) at least one sulfur species and (iii) NaCl, wherein the mol percent of S is less than 10, based on the total moles of (i), (ii) and (iii).
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: April 7, 2020
    Assignee: Battelle Memorial Institute
    Inventors: Guosheng Li, Jin Yong Kim, Xiaochuan Lu, Kerry D. Meinhardt, Vincent L. Sprenkle
  • Patent number: 10604410
    Abstract: The present invention relates to a negative electrode active material for a lithium secondary battery, which comprises graphite having an alkali carbonate layer formed on a surface thereof, wherein the graphite has an ID/IG ratio of 0.05 to 0.3 in Raman spectroscopy, and a method of preparing the same, wherein, since the negative electrode active material for a lithium secondary battery of the present invention includes the graphite having an alkali carbonate layer formed on the surface thereof, the alkali carbonate layer contributes to the formation of a stable solid electrolyte interface (SEI) to reduce a side reaction with an electrolyte solution including propylene carbonate. Thus, since low-temperature performance and initial efficiency of the lithium secondary battery may be improved, the negative electrode active material for a lithium secondary battery of the present invention is suitable for the preparation of the lithium secondary battery.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: March 31, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sun Young Shin, Su Min Lee, Oh Byong Chae, Eun Kyung Kim
  • Patent number: 10573884
    Abstract: Various embodiments of the present disclosure describe energy storage devices. In one example, an energy storage device includes an anode having a plurality of active material particles, a cathode having a transition metal oxide material, and an electrolyte including a room temperature ionic liquid to couple the anode to the cathode. Each of the plurality of anode active material particles have a particle size of between about one micrometer and about fifty micrometers. One or more of the plurality of anode active material particles are enclosed by and in contact with a membrane coating permeable to lithium ions.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: February 25, 2020
    Assignee: Regents Of The University Of Colorado, A Body Corporate
    Inventors: Se-Hee Lee, Daniela Molina Piper, Tyler Evans
  • Patent number: 10573925
    Abstract: The present invention relates to an electrode for a secondary battery, comprising an electrode current collector and a lithium metal layer disposed on one surface of the electrode current collector, wherein a thickness difference between the thinnest portion and the thickest portion of the lithium metal layer is 1,000 pm or less, and a method of manufacturing the same.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 25, 2020
    Assignee: LG CHEM, LD.
    Inventors: Oh Byong Chae, Sang Wook Woo, Hee Won Choi, Eun Kyung Kim
  • Patent number: 10573933
    Abstract: A lithium metal battery includes: a positive electrode, a negative electrode including lithium, a liquid electrolyte disposed between the positive electrode and the negative electrode, and a protective layer disposed on at least a portion of the negative electrode, wherein the protective layer includes a first polymer selected from at least one of a poly(vinyl alcohol) and a poly(vinyl alcohol) blend.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: February 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joonseon Jeong, Yooseong Yang, Hyorang Kang
  • Patent number: 10566595
    Abstract: A separator made of ion conductive ink is produced by additive manufacturing. A micro-battery is produced with the separator made of ion conductive ink located between the battery's anode and cathode. The separator functions to keep the anode and cathode apart and to facilitate the transport of ions to produce an operative micro-battery.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 18, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Eric B. Duoss, Patrick G. Campbell, William C. Floyd, III, Julie A. Mancini, Matthew Merrill, Conner T. Sharpe, Christopher M. Spadaccini, Michael Stadermann, Cheng Zhu
  • Patent number: 10566606
    Abstract: The present invention discloses a spherical or spherical-like lithium battery cathode material, a battery and preparation methods and applications thereof. The chemical formula of the cathode material is: LiaNixCoyMnzMbO2, wherein 1.0?a?1.2; 0.0<b?0.05; 0.30?x?0.90; 0.05?y?0.40; 0.05?z?0.50; x+y+z+b=1; M is one or two or more of Mg, Ti, Al, Zr, Y, Co, Mn, Ni, Ba and a rare earth element. A single ?-NaFeO2 type layered structure of the cathode material is shown by a powder X-ray diffraction pattern and full width at half maximum FWHM (110) of the (110) diffraction peak near a diffraction angle 2? of 64.9° is in the range of 0.073 to 0.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: February 18, 2020
    Assignee: Guizhou Zhenhua E-CHEM Inc.
    Inventors: Chaoyi Zhou, Lijuan Wang, Zhu'an Yin, Daixiang Yang, Qianxin Xiang, Ming Mei, Peng Peng
  • Patent number: 10559431
    Abstract: A supercapacitor according to the present invention includes a negative carbon-comprising electrode which does not intercalate sodium, and a positive carbon-comprising electrode. An electrolyte composition comprises sodium hexafluorophosphate and a non-aqueous solvent comprising at least one selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether. The supercapacitor has an electrochemical voltage window of from +0.0 V to 3.5 V (full cell voltage). The electrolyte has an electrochemical voltage window of from +0.05 V to 3.9 V vs. Na/Na+. A method of making and a method of operating a supercapacitor is also disclosed.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: February 11, 2020
    Assignee: UT-BATTELLE, LLC
    Inventors: Rose E. Ruther, Frank M. Delnick, Jagjit Nanda
  • Patent number: 10559816
    Abstract: The present disclosure suppresses, by uniformly coating lithium transition metal composite oxide particles with LiwNbxOy (1?w?8, 1?x?13, 1?y?20), a direct contact between a positive electrode active material and a liquid electrolyte and thereby suppresses a side reaction between the positive electrode active material and the liquid electrolyte, and improves stability at high temperatures and high voltages, and in particular, is effective in enhancing battery performance by forming Li2O—Nb2O5 through reacting the coating layer with Li present on the surfaces of the lithium transition metal composite oxide particles.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: February 11, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Woo Yeon Kong, Hye Lim Jeon, Sung Bin Park, Wang Mo Jung, Seong Hoon Kang
  • Patent number: 10559815
    Abstract: Provided is graphene-embraced particulate for use as a lithium-ion battery anode active material, wherein the particulate comprises primary particle(s) of an anode active material and multiple sheets of a first graphene material overlapped together to embrace or encapsulate the primary particle(s) and wherein a single or a plurality of graphene-encapsulated primary particles, along with an optional conductive additive, are further embraced or encapsulated by multiple sheets of a second graphene material, wherein the first graphene and the second graphene material is each in an amount from 0.01% to 20% by weight and the optional conductive additive is in an amount from 0% to 50% by weight, all based on the total weight of the particulate. Also provided are an anode and a battery comprising multiple graphene-embraced particulates.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 11, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Jun Yin, Jen-Hsien Yang, Yu-Sheng Su, Bor Z. Jang
  • Patent number: 10553874
    Abstract: A hybrid protective coating includes an inorganic component and an organic component such that the inorganic component includes at least one of a metal oxide, a metal fluoride, or combination thereof, and the organic component includes at least one metalcone.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: February 4, 2020
    Assignee: UChicago Argonne, LLC
    Inventors: Jeffrey W. Elam, Lin Chen
  • Patent number: 10553863
    Abstract: A negative active material for a lithium secondary battery and a lithium secondary battery including the same are provided. The negative active material may be a silicon (Si)-based alloy negative active material. In some embodiments, the Si-based alloy negative active material may include Si, iron (Fe), copper (Cu), and aluminum (Al), and may have a Si single phase and a first alloy phase, the first alloy phase being represented by a formula of AlxCuy, where x<y. In some embodiments, the Si-based alloy negative active material may include Si, Fe, and Cu, and may include a Si single phase, a first alloy phase, and a second alloy phase, the first alloy phase being represented by a formula of Cu15Si4, and the second alloy phase being represented by a formula of Cu3Fe17.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 4, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hana Yoo, Seunguk Kwon, Jaehyuk Kim, Soonsung Suh, Dukhyoung Yoon
  • Patent number: 10547047
    Abstract: Positive electrode active material particle powder includes lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 ?m to 20 ?m, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape in which each (111) plane thereof is adjacent to at least one (100) plane thereof.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: January 28, 2020
    Assignee: TODA KOGYO CORP.
    Inventors: Kazumichi Koga, Hiroaki Masukuni, Kazutoshi Matsumoto
  • Patent number: 10547088
    Abstract: Embodiments of a method for cycling a rechargeable alkali metal battery with high Coulombic efficiency (CE) are disclosed. A slow charge/rapid discharge protocol is used in conjunction with a concentrated electrolyte to achieve high CE in rechargeable lithium and sodium batteries, include anode-free batteries. In some examples, the CE is ?99.8%.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: January 28, 2020
    Assignee: Battelle Memorial Institute
    Inventors: Ji-Guang Zhang, Brian D. G. Adams, Wu Xu, Jianming Zheng
  • Patent number: 10547057
    Abstract: Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 28, 2020
    Assignee: Maxwell Technologies, Inc.
    Inventors: Porter Mitchell, Xiaomei Xi, Linda Zhong, Bin Zou
  • Patent number: 10535871
    Abstract: A composite electrode active material includes: a core portion including a silicon-based alloy; and a shell portion disposed on the core portion and including a coating layer, wherein the coating layer includes an amorphous carbon material and a lithium titanium oxide. A lithium battery including the composite electrode active material and a method of manufacturing the composite electrode active material are also provided.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: January 14, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Changsu Shin, Sora Lee, Changui Jeong, Hyeri Eom
  • Patent number: 10535878
    Abstract: The present invention provides an energy storage device comprising a cathode region or other element. The device has a major active region comprising a plurality of first active regions spatially disposed within the cathode region. The major active region expands or contracts from a first volume to a second volume during a period of a charge and discharge. The device has a catholyte material spatially confined within a spatial region of the cathode region and spatially disposed within spatial regions not occupied by the first active regions. In an example, the catholyte material comprises a lithium, germanium, phosphorous, and sulfur (“LGPS”) containing material configured in a polycrystalline state. The device has an oxygen species configured within the LGPS containing material, the oxygen species having a ratio to the sulfur species of 1:2 and less to form a LGPSO material.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: January 14, 2020
    Assignee: QuantumScape Corporation
    Inventors: Cheng-Chieh Chao, Zhebo Chen, Tim Holme, Marie A. Mayer, Gilbert N. Riley, Jr.
  • Patent number: 10522832
    Abstract: A secondary battery includes a positive electrode including a positive electrode active material which includes a center portion including a lithium composite oxide including cobalt and an element M, and a covering portion that is provided on at least a portion of a surface of the center portion and contains lithium, nickel, and manganese elements. A concentration thereof has a gradient in a direction from a surface toward a center of the positive electrode active material. A first molar fraction satisfies 0.03<R<0.13 at a first position within the covering portion where the proportion D satisfies D=0.05. A second molar fraction satisfies 0.01<R<0.13 at a second position within the center portion where the proportion D satisfies D=0.3. A ratio F of the second molar fraction to the first molar fraction satisfies 0.7?F?1.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 31, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuki Niwata, Shingo Nakasato, Asuki Yanagihara, Yosuke Hosoya
  • Patent number: 10522823
    Abstract: The present invention relates to an cathode active material for lithium secondary battery and a lithium secondary battery including the same, and more specifically, it relates to an anode active material for lithium secondary battery which includes a concentration gradient layer having a controlled thickness and a shell layer on the periphery of the core layer of the anode active material having a layered structure and in which the lithium ion diffusion paths in the primary particles and the secondary particles are formed to exhibit directivity in a specific direction, and a lithium secondary battery including the same.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: December 31, 2019
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Jik Soo Kim, Moon Ho Choi, Jin Kyeong Yun, Jae Yong Jung, Suk Yong Jeon, Jong Seung Shin
  • Patent number: 10522822
    Abstract: The present disclosure relates to improved LMO composition suitable for use as cathode material in rechargeable lithium ion batteries. The LMO composition may be doped with an additional metal or undoped. The LMO composition carries a surface treatment of LiF that protects the LMO from acid degradation. Cathodes prepared from the improved LMO have improved fade characteristics.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: December 31, 2019
    Assignee: EMD Acquisition LLC
    Inventors: Phillip M. Story, Laurie I. Jegaden
  • Patent number: 10516163
    Abstract: In general, according to one embodiment, there is provided an active material. The active material contains a composite oxide having an orthorhombic crystal structure. The composite oxide is represented by a general formula of Li2+wNa2?xM1yTi6?zM2zO14+?. In the general formula, the M1 is at least one selected from the group consisting of Cs and K; the M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Co, Mn, and Al; and w is within a range of 0?w?4, x is within a range of 0<x<2, y is within a range of 0?y<2, z is within a range of 0<z?6, and ? is within a range of ?0.5???0.5.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: December 24, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro Harada, Norio Takami, Yorikazu Yoshida, Kazuki Ise
  • Patent number: 10516156
    Abstract: A process for preparing a stable LixMn2-yMeyO4-zClz material with a MOb or MMnaOb charge transfer catalyst coating is provided, where Me is Fe, Co, or Ni and M is Bi, As, or Sb. In addition, a LixMn2-yMeyO4-zClz material with a MOb or MMnaOb charge transfer catalyst coating is provided. Furthermore, a lithium or lithium ion rechargeable electrochemical cell is provided, which includes a cathode material (in a positive electrode) containing a LixMn2-yMeyO4-zClz material with a MOb or MMnaOb charge transfer catalyst coating.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 24, 2019
    Assignee: The Government of the United States as represented by the Secretary of the Army
    Inventors: Ashley L. Ruth, Terrill B. Atwater, Paula C. Latorre
  • Patent number: 10511012
    Abstract: Battery systems using coated conversion materials as the active material in battery cathodes are provided herein. Protective coatings may be an oxide, phosphate, or fluoride, and may be lithiated. The coating may selectively isolate the conversion material from the electrolyte. Methods for fabricating batteries and battery systems with coated conversion material are also provided herein.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 17, 2019
    Assignee: QuantumScape Corporation
    Inventors: Rainer Fasching, Joseph Han, Jon Shan, Ghyrn E. Loveness, Eric Tulsky, Timothy Holme
  • Patent number: 10504635
    Abstract: An object of the present invention is to provide a carbonaceous material for a negative electrode for producing a nonaqueous electrolyte secondary battery capable of rapid charge and discharge and having excellent rate characteristics (output characteristics) while maintaining a large discharge capacity. The problem described above can be solved by a carbonaceous material for a nonaqueous electrolyte secondary battery negative electrode of the present invention obtained by heat-treating a non-graphitizable carbon precursor which is pulverized and contains from 13 to 80 wt. % of a volatile component. With the present invention, it is possible to provide a carbonaceous material for a nonaqueous electrolyte secondary battery negative electrode, whereby a nonaqueous electrolyte secondary battery having a large charge-discharge capacity and having excellent rate characteristics can be produced.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 10, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Makoto Imaji, Yasuhiro Tada, Naohiro Sonobe
  • Patent number: 10490823
    Abstract: Example embodiments relate to electrode materials, secondary batteries including the electrode materials, and methods of manufacturing the electrode materials and the secondary batteries. An electrode material may include a foam structure having a plurality of pores and a plurality of nanostructures disposed in the plurality of pores. The foam structure may include a graphene foam structure. The plurality of nanostructures may include at least one of a nanoparticle and a nanorod. The plurality of nanostructures may include a material capable of accommodating/discharging ions. The electrode material may be used as an anode material of a secondary battery.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeonjin Shin, Dongwook Lee, Seongjun Park
  • Patent number: 10472248
    Abstract: Disclosed is a method for manufacturing calcium zincate crystals including: placing calcium hydroxide2 and zinc oxide, one of the precursors thereof, or one of the water mixtures thereof in a starting suspension, the mass ratio of water to calcium hydroxide and zinc oxide, or one of the precursors or mixtures thereof, being greater than or equal to 1; milling the starting suspension to an ambient temperature less than or equal to 50° C. in a wet-phase three-dimensional micro-ball mill for a residence time less than or equal to 15 minutes and in particular from 5 to 25 seconds; recovering a calcium zincate crystal suspension coming out of the mill; and optionally, concentrating or drying the calcium zincate crystal suspension so as to obtain a calcium zincate crystal powder. Also disclosed are uses associated with the calcium zincate crystals obtained according to the method described above.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 12, 2019
    Assignee: EASYL
    Inventors: Francois Lacoste, Julien Thiel
  • Patent number: 10461359
    Abstract: Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 29, 2019
    Assignee: Amprius, Inc.
    Inventors: Yi Cui, Song Han, Ghyrn E. Loveness
  • Patent number: 10454097
    Abstract: A positive electrode composition for nonaqueous electrolyte secondary battery comprises a lithium transition metal complex oxide represented by a general formula LiaNi1-x-yCoxM1yWzM2wO2, where 1.0?a?1.5, 0?x?0.5, 0?y?0.5, 0.002?z?0.03, 0?w?0.02, 0?x+y?0.7, M1 represents at least one selected from the group consisting of Mn and Al, and M2 represents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo; and a boron compound comprising at least boron element and oxygen element.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 22, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Kousuke Shimokita, Kenta Kawai, Kiyofumi Inouchi
  • Patent number: 10446843
    Abstract: Positive electrode active material particle powder includes: lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50 ) of the secondary particles being from 4 ?m to 20 ?m, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape having at least one (110) plane that is adjacent to two (111) planes.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 15, 2019
    Assignee: TODA KOGYO CORP.
    Inventors: Kazumichi Koga, Hiroaki Masukuni, Kazutoshi Matsumoto
  • Patent number: 10439211
    Abstract: There are provided a cathode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery containing the same. The cathode active material for a lithium secondary battery includes: a compound reversibly intercalating and deintercalating lithium; and a coating layer positioned on at least a portion of a surface of the compound, wherein the coating layer is a composite coating layer containing Li3PO4 and further containing a lithium metal oxide, a metal oxide, and/or a combination thereof, the lithium metal oxide or the metal oxide containing Zr.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: October 8, 2019
    Assignee: L&F CO., LTD.
    Inventors: Su An Choi, Ho Jun Jeong, Sang Hoon Jeon, Ji Woon Yang, Jun Ho Shin, Ji Sun An, Bong Jun Jeong
  • Patent number: 10439218
    Abstract: According to one embodiment, there is provided an active material including particles of a composite oxide having an orthorhombic crystal structure and represented by the general formula Li2+wNa2?xM1yTi6?zM2zO14??. The particles of the composite oxide have an average crystallite size of 50 nm to 90 nm and an average primary particle size of 0.1 ?m to 0.6 ?m. M1 is at least one selected from the group consisting of Cs and K. M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Y, Co, Mn, and Al. w falls within 0?w?4, x falls within 0<x<2, y falls within 0?y<2, z falls within 0<z<6, and ? falls within ?0.5???0.5.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 8, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Fumihiro Tejima, Yasuhiro Harada, Kazuki Ise, Norio Takami
  • Patent number: 10439216
    Abstract: The present invention provides a positive electrode active material for secondary battery and a secondary battery including the same. The positive electrode active material includes a core including a lithium composite metal oxide of Formula 1 below, a first surface-treated layer positioned on the surface of the core and including a lithium oxide of Formula 2 below, and a second surface treated layer positioned on the core or the first surface-treated layer and including a lithium compound of Formula 3. Thus, the present invention can improve capacity characteristics and output characteristics of a battery and also reduce the generation of gas, LiaNi1-x-yCoxM1yM3zM2wO2 ??[Formula 1] LimM4O(m+n)/2 ??[Formula 2] LipM5qAr ??[Formula 3] (in formulae 1 to 3, A, M1 to M5, a, x, y, z, w, m, n, p, and q are the same as those defined in the specification).
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ju Kyung Shin, Wang Mo Jung, Byung Chun Park, Ji Hoon Ryu, Sang Min Park, Sang Wook Lee