公开(公告)号：US20230420735A1

公开(公告)日：2023-12-28

申请号：US18462729

申请日：2023-09-07

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Jun YOSHIDA ,  Shinya SHIOTANI ,  Masaru KUBOTA ,  Yohei SHINDO ,  Takeshi USAMI

IPC分类号： H01M10/0562 ,  H01M4/48 ,  H01M10/44

CPC分类号： H01M10/0562 ,  H01M4/483 ,  H01M10/446 ,  H01M2004/028

摘要： A solid-state battery having a low heat generation amount and low resistance, and a method for producing the same. The solid-state battery is a solid-state battery comprising: a cathode comprising a cathode layer that contains an oxide-based cathode active material, an anode comprising an anode layer that contains an anode active material, and a solid electrolyte layer being disposed between the cathode layer and the anode layer and containing a solid electrolyte, wherein at least any one of the cathode layer and the solid electrolyte layer contains a sulfide-based solid electrolyte, and wherein the sulfide-based solid electrolyte comprises a high oxygen concentration layer on a contact surface with the oxide-based cathode active material, the high oxygen concentration layer having a higher oxygen element concentration than other parts except the contact surface.

公开(公告)号：US20230253613A1

公开(公告)日：2023-08-10

申请号：US17958785

申请日：2022-10-03

申请人： TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ryoji KANNO ,  Satoshi HORI ,  Keiichi MINAMI ,  Shinya SHIOTANI

IPC分类号： H01M10/0562

CPC分类号： H01M10/0562 ,  H01M2300/0068

摘要： A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.

公开(公告)号：US20230011919A1

公开(公告)日：2023-01-12

申请号：US17843240

申请日：2022-06-17

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shinya SHIOTANI ,  Takamasa OHTOMO ,  Fuminori MIZUNO

IPC分类号： H01M50/572 ,  H01M10/056 ,  H01M10/0585

摘要： A main object of the present disclosure is to provide an all solid state battery in which occurrence of internal short circuit is inhibited. The present disclosure achieves the object by providing an all solid state battery including, in an order along with a thickness direction, a cathode layer, a solid electrolyte layer and an anode layer; wherein one of the cathode layer and the anode layer is an electrode layer A containing a first polymer electrolyte; the other of the cathode layer and the anode layer is an electrode layer B containing an inorganic solid electrolyte; the solid electrolyte layer contains a second polymer electrolyte; the second polymer electrolyte is a cross-linked polymer to which a polymer component is cross-linked; and in a plan view along with the thickness direction of the all solid state battery, an area of the solid electrolyte layer is larger than an area of the electrode layer A.