公开(公告)号：US20240322162A1

公开(公告)日：2024-09-26

申请号：US18259501

申请日：2021-12-07

Applicant: SHIN-ETSU CHEMICAL CO., LTD.

Inventor： Takakazu HIROSE ,  Takumi MATSUNO ,  Yusuke OSAWA ,  Reiko SAKAI ,  Hiroyuki KOIDE

IPC: H01M4/58 ,  C01B33/32 ,  H01M4/02 ,  H01M4/36 ,  H01M4/587

CPC classification number: H01M4/5825 ,  C01B33/32 ,  H01M4/366 ,  H01M4/587 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2002/86 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/40 ,  H01M2004/027

Abstract: A negative electrode active material for non-aqueous electrolyte secondary battery, the material including a negative electrode active material particle, wherein the particle contains a silicon compound particle containing a silicon compound containing oxygen, at least part of a surface of the compound particle is coated with carbon layer, the compound particle contains Li2SiO3 as a Li silicate, the Li2SiO3 is a material wherein at least a part of the Li2SiO3 is to change into Li4SiO4 by charging and discharging the particle once or more, and an abundance ratio of the Li2SiO3 is higher than that of the Li4SiO4 before charging and discharging the particle, and the abundance ratio of the Li4SiO4 is higher than that of the Li2SiO3 after charge and discharge at 100 times. Provided is a material that can achieve increase in battery capacity with improvement of initial efficiency, sufficient battery cycle characteristics, and input characteristics.

公开(公告)号：US20240282962A1

公开(公告)日：2024-08-22

申请号：US18581825

申请日：2024-02-20

Applicant: SK ON CO., LTD.

Inventor： Nak Won KIM ,  Joon Hyung MOON ,  Eun Jun PARK ,  Ju Ho CHUNG

IPC: H01M4/58 ,  C01B33/32 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62

CPC classification number: H01M4/5825 ,  C01B33/32 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/625 ,  C01P2002/85 ,  C01P2006/40 ,  H01M2004/028

Abstract: An anode active material for a secondary battery according to an embodiment includes comprising a lithium-silicon oxide particle that contains Li2Si2O5 and has a phase fraction ratio of 1.0 or less. A content of lithium elements on a surface of the lithium-silicon oxide particle measured through an X-ray photoelectron spectroscopy (XPS) analysis based on the total number of atoms on the surface of the lithium-silicon oxide particle measured through the XPS analysis is 10 atomic % or less.

公开(公告)号：US20240266516A1

公开(公告)日：2024-08-08

申请号：US18616052

申请日：2024-03-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingyan Ma ,  Yingjie Guan ,  Yuzhen Zhao ,  Yan Wen ,  Qisen Huang

IPC: H01M4/36 ,  C01B25/45 ,  C01B33/32 ,  H01M4/02 ,  H01M4/1315 ,  H01M4/137 ,  H01M4/505 ,  H01M4/60

CPC classification number: H01M4/366 ,  C01B25/45 ,  C01B33/32 ,  H01M4/1315 ,  H01M4/137 ,  H01M4/505 ,  H01M4/604 ,  H01M4/608 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2006/40 ,  H01M2004/028

Abstract: A positive electrode active material, a method for preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same are provided. The positive electrode active material has a core-shell structure, comprising a core, a first cladding layer covering the core, a second cladding layer covering the first cladding layer, wherein the core has a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, the first cladding layer comprises a first polymer containing an electron withdrawing group, the second cladding layer comprises a second polymer, and wherein the second polymer comprises one or more of plant polysaccharides, marine polysaccharides and the derivatives thereof. The positive electrode active material of the present application enables a secondary battery to have a relatively high energy density, while further having a significantly improved rate performance, cycling performance and/or high-temperature stability.

公开(公告)号：US11873218B2

公开(公告)日：2024-01-16

申请号：US16969180

申请日：2019-02-15

Applicant: Porner Ingenieurgesellschaft m.b.H.

Inventor： Gerhard Bacher ,  Holger Henze ,  Dirk Fliegner ,  Christoph Manitz ,  Sebastian Grahl ,  William H. Mullee

IPC: C01B33/32 ,  B01L1/00 ,  B01J16/00

CPC classification number: C01B33/32 ,  B01J16/00 ,  B01L1/00 ,  C01P2006/80

Abstract: Liquid silicate products derived from processed organic plant matter (112), such as rice hulls, have improved purity and properties for use in the production of higher purity amorphous silica compositions (180). The liquid silicate can be optically clear, can have a controlled ratio of silica to metal earth oxide components, and can have lower concentrations of undesirable contaminants such as aluminum, chloride, iron, sulfate, and titanium.

公开(公告)号：US20190237765A1

公开(公告)日：2019-08-01

申请号：US16263258

申请日：2019-01-31

Applicant: Thermal Ceramics UK Limited

Inventor： Martyn BROWN ,  Richard CLARK ,  Jason Peter STREET

IPC: H01M4/58 ,  C01B33/32 ,  C01B33/26

CPC classification number: H01M4/5825 ,  C01B33/26 ,  C01B33/32 ,  H01M2/1613 ,  H01M2/1633 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562

Abstract: The present invention relates to an energy storage device comprising a silicate comprises a formula: MvM1wM2xSiyOz where M is selected from the group consisting of Li, Na, K, Al, and Mg M1 is selected from the group consisting of alkaline metals, alkaline earth metals, Ti, Mn, Fe, La, Zr, Ce, Ta, Nb, V and combinations thereof; M2 is selected from the group consisting of B, Al, Ga, Ge or combinations thereof; v, y and z are greater than 0; w and/or x is greater than 0; y≥x; and wherein MvM1wM2xSiyOz accounts for at least 90 wt % of the composition.

公开(公告)号：US20190224651A1

公开(公告)日：2019-07-25

申请号：US16250244

申请日：2019-01-17

Applicant: BASF SE

Inventor： Kazuhiko AMAKAWA ,  Christian WALSDORFF ,  Klaus Joachim MUELLER-ENGEL ,  Cornelia Katharina DOBNER ,  Ulrich HAMMON

IPC: B01J23/887 ,  C01B33/32 ,  B01J35/00 ,  B01J35/02 ,  B01J37/04 ,  B01J37/08 ,  C07C45/35

CPC classification number: B01J23/8876 ,  B01J23/002 ,  B01J23/8885 ,  B01J35/008 ,  B01J35/026 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1042 ,  B01J37/0018 ,  B01J37/0236 ,  B01J37/04 ,  B01J37/08 ,  B01J37/088 ,  B01J2523/00 ,  C01B33/32 ,  C01G39/006 ,  C01P2002/50 ,  C01P2004/30 ,  C07C45/35 ,  C07C51/215 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/69 ,  C07C47/22 ,  C07C57/04

Abstract: Multimetal oxide composition comprising Mo, Bi, Fe, Cu and one or more than one of the elements Co and Ni and use thereof.

公开(公告)号：US20180254480A1

公开(公告)日：2018-09-06

申请号：US15759334

申请日：2016-08-29

Applicant: SHIN-ETSU CHEMICAL CO., LTD. ,  MITSUI CHEMICALS, INC.

Inventor： Hiromichi KAMO ,  Takakazu HIROSE ,  Katsunori NISHIURA ,  Hitoshi ONISHI

IPC: H01M4/48 ,  H01M10/0525 ,  H01M10/058 ,  C01B33/32

CPC classification number: H01M4/483 ,  C01B33/32 ,  C01B33/325 ,  C01P2006/40 ,  H01M4/139 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027 ,  H01M2220/30

Abstract: A production method of a negative electrode active material containing a silicon compound (SiOx: 0.5≤x≤1.6) that contains Lithium includes: making a silicon compound into which the lithium has been inserted contact with a solution B containing a polycyclic aromatic compound or a derivative thereof or both thereof (here, the solution B contains one or more kinds selected from an ether-based solvent, a ketone-based solvent, an ester-based solvent, an alcohol-based solvent, and an amine-based solvent as a solvent); and making the silicon compound contact with a solution C (here, the solution C contains one or more kinds selected from an ether-based material, a ketone-based material, and an ester-based material as the solvent, and contains a compound having a quinoid structure in a molecule as a solute).

公开(公告)号：US09997772B2

公开(公告)日：2018-06-12

申请号：US14419495

申请日：2013-08-23

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Tomohiro Niimi ,  Yusuke Sugiyama ,  Nagisa Watanabe ,  Kazuhito Kawasumi ,  Masakazu Murase ,  Masataka Nakanishi

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/136 ,  H01M4/58 ,  H01M4/62 ,  C01B33/32 ,  H01M4/1397 ,  H01M4/48 ,  H01M10/0525 ,  H01M4/1395 ,  H01M4/134 ,  H01M4/02

CPC classification number: H01M4/366 ,  C01B33/32 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1395 ,  H01M4/1397 ,  H01M4/483 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

Abstract: Providing a negative-electrode material for nonaqueous-electrolyte secondary battery, the negative-electrode material including lithium silicate particles coated by a carbonaceous substance, a production process for the same, a negative electrode for nonaqueous-electrolyte secondary battery, and a nonaqueous-electrolyte secondary battery. A negative-electrode material for nonaqueous-electrolyte secondary battery includes lithium silicate particles having a surface at least some of which is coated by a carbonaceous substance formed by heating a carbon-containing compound at a thermal decomposition temperature of the carbon-containing compound or more and 1,100±° C. or less, the carbon-containing compound being a solid at ordinary temperature and exhibiting a zeta-potential absolute value being 60 or more against N-methyl-2-pyrrolidone (or NMP).

公开(公告)号：US20180076456A1

公开(公告)日：2018-03-15

申请号：US15701961

申请日：2017-09-12

Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives

Inventor： Guillaume Lefevre ,  Jean-Baptiste Ducros ,  Sebastien Martinet

IPC: H01M4/58 ,  C01B33/32

CPC classification number: H01M4/5825 ,  C01B33/22 ,  C01B33/32 ,  C01P2002/30 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/40 ,  H01M2004/028

Abstract: The present invention relates to a product constituted totally or partly by a material of olivine crystallographic structure of formula: AaZzMmSiO4 in which A is chosen from lithium (Li), sodium (Na), potassium (K) and mixtures thereof, Z is chosen from beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and mixtures thereof, M is chosen from iron (Fe), nickel (Ni), cobalt (Co), manganese (Mn), chromium (Cr), and mixtures thereof, a, z and m are the stoichiometric coefficients, respectively, of A, Z and M, and satisfy the following conditions: z>0, m>0, a>0, a+z+m≦2, and 2≦(4−a−2z)/m

公开(公告)号：US20180053929A1

公开(公告)日：2018-02-22

申请号：US15556936

申请日：2015-09-17

Applicant: TAIHEIYO CEMENT CORPORATION

Inventor： Hiroki YAMASHITA ,  Tomoki HATSUMORI ,  Atsushi NAKAMURA ,  Takaaki OGAMI

IPC: H01M4/133 ,  C01B25/45 ,  C01B33/32 ,  H01M4/136 ,  H01M4/36 ,  H01M4/58 ,  H01M4/587

CPC classification number: H01M4/133 ,  C01B25/45 ,  C01B33/20 ,  C01B33/32 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/364 ,  H01M4/366 ,  H01M4/582 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/62 ,  H01M4/625 ,  H01M2004/028

Abstract: A positive electrode active substance for a secondary cell, where the positive electrode active substance is capable of suppressing adsorption of water effectively in order to obtain a high-performance lithium ion secondary cell or sodium ion secondary cell. The positive electrode active substance contains 0.3 to 5 mass % of graphite, 0.1 to 4 mass % of carbon obtained by carbonizing a water-soluble carbon material, or 0.1 to 5 mass % of a metal fluoride is supported on a composite containing a compound which contains at least iron or manganese, where the compound is represented by formula (A) LiFeaMnbMcPO4, formula (B) Li2FedMneNfSiO4, or formula (C) NaFegMnhQiPO4, and carbon obtained by carbonizing a cellulose nanofiber.