公开(公告)号：US20210098779A1

公开(公告)日：2021-04-01

申请号：US16799645

申请日：2020-02-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/587

Abstract: The positive electrode material for a lithium ion polymer battery of the present invention is active material particles including core particles represented by General Formula LixAyDzPO4 and the carbonaceous film that coats surfaces of the core particles, wherein a paste including the active material particles has a viscosity of 5,000 mPa·s or less when a viscosity of the paste is measured at a shear rate of 4.0 [1/s], wherein the paste is a mixture of the active material particles, an ion-conductive polymer, a conductive auxiliary agent and a solvent, in which the active material particles, the ion-conductive polymer and the conductive auxiliary agent are included in the paste in a mass ratio of 66:30:4, and a total solid content of the paste is 40% by mass.

公开(公告)号：US20170092938A1

公开(公告)日：2017-03-30

申请号：US15009312

申请日：2016-01-28

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO ,  Hirofumi YASUMIISHI ,  Takao KITAGAWA

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: An electrode material tor a lithium-ion rechargeable battery of the present invention includes inorganic particles represented by General Formula LiFexMn1-x-yMyPO4 (0.05≦x≦1.0, 0≦y≦0.14; here, M represents at least one element selected from Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements) and a carbonaceous film coating surfaces of the inorganic particles, and at least one peak of a micropore diameter distribution is present in a range of 0.4 nm to 5.0 nm. An electrode for a lithium-ion rechargeable battery of the present invention includes the electrode material for a lithium-ion rechargeable battery of the present invention. A lithium-ion rechargeable battery of the present invention includes a cathode, an anode, and a non-aqueous electrolyte, in which the electrode for a lithium-ion rechargeable battery of the present invention is used as the cathode.

公开(公告)号：US20170092937A1

公开(公告)日：2017-03-30

申请号：US14996069

申请日：2016-01-14

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Masataka OYAMA ,  Kouji OONO ,  Takao KITAGAWA

IPC: H01M4/36 ,  H01M4/1391 ,  H01M4/134 ,  H01M4/136 ,  H01M4/62 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/366 ,  C01B25/45 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: Provided are an electrode material for a lithium-ion rechargeable battery including core particles of an active material and a carbonaceous film, in which a powder resistance is 150 Ω·cm or less, and a lithium-ion rechargeable battery produced using the electrode material and a lithium metal exhibits a difference between a sum of a charge capacity with an upper limit voltage of 4.2 V and the lithium-ion rechargeable battery charged at a constant current and a charge capacity with the lithium-ion rechargeable battery charged at a constant voltage for seven days at 4.2 V after the constant current charging and a discharge capacity with the lithium-ion rechargeable battery discharged at a constant current to 2 V after the constant voltage charging reaches 25 mAh/g or less, a method for manufacturing the electrode material, an electrode including the electrode material, and a lithium-ion rechargeable battery including the electrode as a cathode.

公开(公告)号：US20160190589A1

公开(公告)日：2016-06-30

申请号：US14697123

申请日：2015-04-27

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO ,  Kenta OOISHI ,  Takao KITAGAWA ,  Masataka OYAMA ,  Satoru OSHITARI ,  Ryuuta YAMAYA

IPC: H01M4/62 ,  H01M4/58 ,  H01M4/04 ,  H01M4/36

CPC classification number: H01M4/62 ,  C01B25/45 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/625

Abstract: An electrode material including electrode active material particles and a carbonaceous film layer coating surfaces of the electrode active material particles and including a metal oxide, a content ratio of the metal oxide in the carbonaceous film layer being 5% by mass to 70% by mass. A method for manufacturing an electrode material, in which electrode active material particles, a metal salt or metal alkoxide containing any one or more metal atoms selected from a group consisting of Al, Zr, Si, and Ti, and an organic compound which is a precursor of carbon are mixed so that a total blending amount of the metal salt or metal alkoxide satisfies that an amount of a metal oxide in the carbonaceous film layer when the metal salt or metal alkoxide is all changed to the metal oxide is 5% by mass to 70% by mass, and are heated in a non-oxidative atmosphere.

Abstract translation: 包括电极活性物质粒子的电极材料和电极活性物质粒子的碳膜层被覆表面，并且包含金属氧化物，碳质膜层中的金属氧化物的含有比例为5质量％〜70质量％。 一种电极材料的制造方法，其中电极活性物质颗粒，含有选自Al，Zr，Si和Ti中的一种或多种金属原子的金属盐或金属醇盐，以及作为 将前体碳混合，使得金属盐或金属醇盐的总共混量满足当金属盐或金属醇盐全部改变为金属氧化物时，碳质膜层中的金属氧化物的量为5质量％ 至70质量％，并在非氧化性气氛中加热。

公开(公告)号：US20160079587A1

公开(公告)日：2016-03-17

申请号：US14952429

申请日：2015-11-25

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kouji OONO ,  Satoru OSHITARI

IPC: H01M4/04 ,  C01B25/45 ,  H01M4/58

CPC classification number: H01M4/0471 ,  C01B25/26 ,  C01B25/37 ,  C01B25/41 ,  C01B25/45 ,  C01B25/455 ,  C01P2006/40 ,  H01M4/049 ,  H01M4/366 ,  H01M4/50 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/60 ,  Y02T10/7011

Abstract: Provided is a positive electrode active material for lithium ion batteries, which is capable of realizing stability and safety at a high voltage, a high energy density, high load characteristics, and long-term cycle characteristics by controlling a crystal shape of LiMnPO4 particles having a crystal structure very suitable for Li diffusion or controlling an average primary particle size, a production method thereof, an electrode for lithium ion batteries, and a lithium ion battery. The positive electrode active material for lithium ion batteries of the invention is a positive electrode active material for lithium ion batteries, which is formed from LiMnPO4. Values of lattice constants a, b, and c, which are calculated from an X-ray diffraction pattern, satisfy 10.41 Å

Abstract translation: 本发明提供一种锂离子电池用正极活性物质，其能够通过控制具有以下物质的LiMnPO 4颗粒的晶体形状，从而实现高电压，高能量密度，高负载特性和长期循环特性的稳定性和安全性 非常适合于Li扩散或控制平均一次粒径的晶体结构，其制造方法，锂离子电池用电极和锂离子电池。 本发明的锂离子电池用正极活性物质是由LiMnPO 4形成的锂离子电池用正极活性物质。 由X射线衍射图计算出的晶格常数a，b和c的值满足10.41Å