公开(公告)号：US20200176774A1

公开(公告)日：2020-06-04

申请号：US16720963

申请日：2019-12-19

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Kazuhiro KAMIGUCHI ,  Ryuhei MATSUMOTO ,  Kiyoshi KUMAGAE ,  Shizuka HOSOI ,  Yuri NAKAYAMA

IPC: H01M4/58 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569

Abstract: Provided is a magnesium secondary battery including a positive electrode member 23 including at least a positive electrode active material layer 23B, a separator 24 disposed facing the positive electrode member 23, a negative electrode member 25 containing magnesium or a magnesium compound disposed facing the separator 24, and an electrolytic solution containing a magnesium salt. The positive electrode active material layer 23B includes magnesium sulfide having a zinc blende type crystal structure.

公开(公告)号：US20220328868A1

公开(公告)日：2022-10-13

申请号：US17842147

申请日：2022-06-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuyuki IWANE ,  Koichi NAKANO ,  Yusuke FUNADA ,  Katsunori TAKAHARA ,  Kiyoshi KUMAGAE ,  Keisuke SHIMIZU

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M50/543 ,  H01M4/133 ,  H01M4/62 ,  H01M4/36

Abstract: A solid-state battery that includes: a solid-state battery laminate including at least one battery constituent unit including: a positive electrode layer, the positive electrode layer containing a conductive carbon material; a positive electrode current collecting portion arranged at an end surface of the positive electrode layer; a negative electrode layer; and a solid-state electrolyte layer interposed between the positive electrode layer and the negative electrode layer in a stacking direction thereof; a positive electrode terminal electrically connected to the positive electrode current collecting portion; and a negative electrode terminal electrically connected to the negative electrode layer.

公开(公告)号：US20220320590A1

公开(公告)日：2022-10-06

申请号：US17848859

申请日：2022-06-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuyuki IWANE ,  Noriyuki AOKI ,  Katsunori TAKAHARA ,  Yusuke FUNADA ,  Kiyoshi KUMAGAE ,  Keisuke SHIMIZU

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M4/485

Abstract: A solid state battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a positive electrode active material in which a spacing d003 of a lattice plane (003) is 4.800 Å or more in a charged state at a positive electrode potential of 4.55 V.

公开(公告)号：US20220302506A1

公开(公告)日：2022-09-22

申请号：US17831860

申请日：2022-06-03

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Koichi NAKANO ,  Kiyoshi KUMAGAE ,  Nobuyuki IWANE

IPC: H01M10/0585 ,  H01M50/531 ,  H01M50/548

Abstract: A solid-state battery including a solid-state battery laminate in which a positive electrode layer, a negative electrode layer, and a solid electrolyte layer are laminated with the solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, and positive and negative external terminals are on side surfaces of the solid-state battery laminate. The positive electrode layer and the negative electrode layer each include an active material portion containing an active material , and a current collector portion having a relatively small active material density with respect to the active material portion and arranged on an edge surface of the active material portion so as to form an edge surface current collecting structure in which a current can be collected using the current collector portion on the edge surface of the active material portion.

公开(公告)号：US20190058209A1

公开(公告)日：2019-02-21

申请号：US16168341

申请日：2018-10-23

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Kiyoshi KUMAGAE ,  Yuri NAKAYAMA ,  Tadahiko KUBOTA

IPC: H01M10/054 ,  H01M4/134 ,  H01M4/46 ,  H01M4/66 ,  H01M10/052

Abstract: A method for producing a negative electrode for magnesium secondary batteries includes: providing a current collector having an underlying layer including a metal having a higher ionization tendency than magnesium, where the underlying layer is formed on a surface of the current collector; and forming a negative electrode active material layer including a magnesium layer on the current collector by a chemical plating method using the underlying layer as a base material.