公开(公告)号：US20210013488A1

公开(公告)日：2021-01-14

申请号：US17031171

申请日：2020-09-24

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takayuki NAKATSUTSUMI ,  Ryuichi NATSUI ,  Nobuhiko HOJO

IPC: H01M4/1315 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/505 ,  C01G45/00 ,  C01G53/00 ,  C01G51/00 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525

Abstract: A battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution including a lithium hexafluorophosphate and an additive. The positive electrode active material includes a compound having a crystal structure belonging to a space group FM3-M and represented by Compositional Formula (1): LixMeyOαFβ. The additive is at least one selected from the group consisting of difluorophosphates, tetrafluoroborates, bis(oxalate)borate salts, bis(trifluoromethanesulfonyl)imide salts, and bis(fluorosulfonyl)imide salts.

公开(公告)号：US20160126550A1

公开(公告)日：2016-05-05

申请号：US14893029

申请日：2014-05-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Akira KANO ,  Nobuhiko HOJO ,  Masahisa FUJIMOTO

IPC: H01M4/587 ,  H01M10/054

CPC classification number: H01M4/587 ,  C01B32/05 ,  H01M10/054 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative-electrode active material for a sodium-ion secondary battery contains a porous carbon material which has a plurality of open pores that extend through to the surface, a plurality of closed pores that do not extend through to the surface, and a solid made of carbon material. The distance between (002) planes of the solid portion is not less than 0.340 nm and not more than 0.410 nm. The plurality of closed pores account for a volume ratio of not less than 0% and not more than 10% with respect to a total volume of the plurality of open pores, the plurality of closed pores, and the solid portion. The plurality of open pores account for a volume ratio of not less than 0% and not more than 50% with respect to a total volume of the plurality of open pores, the plurality of closed pores, and the solid portion.

Abstract translation: 用于钠离子二次电池的负极活性材料包含多孔碳材料，其具有延伸到表面的多个开孔，多个未延伸通过表面的封闭孔，并且制成固体 的碳材料。 固体部分的（002）面之间的距离不小于0.340nm且不大于0.410nm。 所述多个封闭孔相对于所述多个开放孔，所述多个封闭孔和所述固体部的总体积的体积比为0％以上且10％以下。 所述多个开放孔相对于所述多个开放孔，所述多个封闭孔和所述固体部的总体积的体积比为不小于0％且不大于50％。

公开(公告)号：US20160104889A1

公开(公告)日：2016-04-14

申请号：US14893027

申请日：2014-05-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Akira KANO ,  Nobuhiko HOJO ,  Masahisa FUJIMOTO

IPC: H01M4/587 ,  C01B31/02 ,  H01M10/054

CPC classification number: H01M4/587 ,  C01B32/00 ,  C01B32/05 ,  C01B32/30 ,  C01B32/318 ,  H01M4/133 ,  H01M10/054 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative-electrode active material for a sodium-ion secondary battery contains a porous carbon material which has a plurality of open pores that extend through to the surface, a plurality of closed pores that do not extend through to the surface, and a solid portion made of carbon material. The distance between (002) planes of carbon in at least a part of the solid portion is 0.36 nm or more. The plurality of closed pores account for a volume ratio of not less than 30% and not more than 90% with respect to a total volume of the plurality of open pores, the plurality of closed pores, and the solid portion.

Abstract translation: 一种钠离子二次电池用负极活性物质，具有多孔碳材料，该多孔质碳材料具有贯穿该表面的多个开放孔，多个不延伸穿过该表面的封闭孔， 由碳材料制成。 固体部分的至少一部分中的碳的（002）面之间的距离为0.36nm以上。 所述多个闭孔相对于所述多个开孔，所述多个闭孔和所述固体部的总体积占体积比不小于30％且不大于90％。

公开(公告)号：US20150244020A1

公开(公告)日：2015-08-27

申请号：US14707901

申请日：2015-05-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takafumi TSUKAGOSHI ,  Nobuhiko HOJO ,  Yu OTSUKA

IPC: H01M10/052 ,  H01M4/48 ,  H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M10/04 ,  H01M4/139

CPC classification number: H01M10/052 ,  H01M4/0423 ,  H01M4/049 ,  H01M4/139 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/5835 ,  H01M10/049 ,  H01M10/0525 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: A negative electrode active material layer containing at least one selected from silicon and a silicon compound as a negative electrode active material is formed, and an amount of lithium exceeding an amount corresponding to a theoretical capacity of the negative electrode active material layer is brought into contact with the negative electrode active material layer so as to prepare a negative electrode. A positive electrode containing a lithium-absorption material capable of irreversibly absorbing lithium is prepared. The positive electrode, the negative electrode, a separator, and a nonaqueous electrolyte are enclosed inside an outer enclosure. A chemical conversion treatment of the negative electrode active material is performed with the lithium brought into contact with the negative electrode active material layer.

Abstract translation: 形成含有选自硅和硅化合物中的至少一种作为负极活性物质的负极活性物质层，并且超过与负极活性物质层的理论容量对应的量的锂被接触 与负极活性物质层一起制备负极。 制备含有不可逆吸收锂的锂吸收材料的正极。 正极，负极，隔膜和非水电解质被封装在外壳内。 在与负极活性物质层接触的锂中进行负极活性物质的化学转化处理。

公开(公告)号：US20170346080A1

公开(公告)日：2017-11-30

申请号：US15595949

申请日：2017-05-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira KANO ,  Junko MATSUSHITA ,  Nobuhiko HOJO

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

Abstract: A negative electrode active material includes a carbon material including boron and a silicon material including at least one selected from silicon and silicon oxide. The silicon material does not include boron. A peak of a B1s spectrum of the carbon material occurs at a binding energy of 187.0 eV or more and 192.0 eV or less, the B1s spectrum being measured by X-ray photoelectron spectroscopy. The ratio of the area of the peak of the B1s spectrum of the carbon material which occurs at a binding energy of 187.0 eV or more and 192.0 eV or less, the B1s spectrum being measured by X-ray photoelectron spectroscopy, to the total area of peaks of the B1s spectrum which occur at a binding energy of 184.0 eV or more and 196.5 eV or less is 50% or more.