US 12,355,065 B2
Cathode, all-solid-state battery and methods for producing them
Nariaki Miki, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jan. 19, 2024, as Appl. No. 18/417,482.
Application 17/669,728 is a division of application No. 16/407,352, filed on May 9, 2019, abandoned.
Application 18/417,482 is a continuation of application No. 17/669,728, filed on Feb. 11, 2022.
Claims priority of application No. 2018-102285 (JP), filed on May 29, 2018.
Prior Publication US 2025/0046789 A1, Feb. 6, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0562 (2010.01); H01M 10/0585 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/362 (2013.01) [H01M 4/62 (2013.01); H01M 10/0562 (2013.01); H01M 10/0585 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0068 (2013.01); H01M 2300/0071 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing an electric vehicle comprising an all-solid-state battery,
wherein the all-solid-state battery comprises a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer,
the method comprising:
preparing cathode active material particles;
vacuum-drying the cathode active material particles at a temperature of 120° C. or more and 300° C. or less for one hour or more;
mixing the cathode active material particles with solid electrolyte particles to obtain a cathode mix; and
forming the cathode mix to obtain the cathode layer,
wherein at least one of the cathode active material particles and the solid electrolyte particles contain a phosphorus element, and
wherein, in a photoelectron spectrum by a X-ray photoelectron spectroscopy measurement of the cathode layer, a P peak intensity ratio (A/B), which is derived from the phosphorus element, of a signal intensity A at a binding energy of 131.6 eV to a signal intensity B at a binding energy of 133.1 eV, is larger than 0.58.