Sony Corporation

Murata Manufacturing Co., Ltd.

Tatsuya Furuya

Yuichi Sabi

Keisuke Shimizu

Momoe Adachi

Koichiro Hinokuma

Hiroyuki Morioka

Katsunori Takahara

Go Sudo

Masamitsu Suzuki

Yui Senda

Keiko Furukawa

Reina Ichikawa

Yuri Nakayama

Hideyuki Kumita

Sae Miyaji

Kenji Kishimoto

Yasushi Tamura

Harumi Shibata

Yumiko Yoshida

A lithium ion conductor includes a first lithium ion conductor that contains at least one selected from among oxide crystals and glass ceramics, and a second lithium ion conductor that has a sintering temperature of not more than 600&#xb0; C. The lithium ion conductivity of the first lithium ion conductor is higher than the lithium ion conductivity of the second lithium ion conductor.

Lithium ion conductor, solid electrolyte layer, electrode, battery, and electronic device

A glass-ceramic includes an oxide containing lithium (Li), silicon (Si), and boron (B) and has an X-ray diffraction spectrum with two or more peaks appearing in the range 20&#xb0;&#x2264;2&#x3b8;&#x2264;25&#xb0; and with two or more peaks appearing in the range 25&#xb0;&#x3c;2&#x3b8;&#x2264;30&#xb0;.

Glass-ceramic, lithium ion conductor, battery, electronic device, and method for producing electrode

In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Thin film solid state lithium ion secondary battery and method of manufacturing the same

A battery capable of improving ionic conduction is provided. The battery includes a cathode, an anode, and a solid electrolyte layer. One or more of the cathode, the anode, and the solid electrolyte layer includes a solid electrolyte binder.

Battery and method of manufacturing the same

There is provided a secondary battery including a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode, wherein at least one of the positive electrode and the negative electrode contains a granular solid electrolyte and a granular conduction aid both bonded to a surface of a granular electrode active substance.

Secondary battery, manufacturing method of secondary battery, electrode for secondary battery, and electronic device

In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

A method for producing a thin-film battery includes a film-formation step of forming a film of a positive-electrode material to form a positive-electrode active material film and an annealing step of annealing the positive-electrode active material film. After the annealing step, a lithium-ion introduction step of introducing lithium ions into the positive-electrode active material film. After the introduction of the lithium ions, a reverse-sputtering step of edging the positive-electrode active material film by reverse sputtering.

Method for producing positive electrode of thin-film battery and method for producing thin-film battery

A solid electrolyte battery using a solid electrolyte capable of realizing high conductivity, and a process for producing a solid electrolyte battery are provided. The solid electrolyte battery is structured as a laminate of a positive electrode collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode collector layer formed in order on a substrate. The solid electrolyte layer is a thin film formed of a compound of the formula LiM0(M =V, Nb, Ta, or Db).

Solid electrolyte battery and process for producing solid electrolyte battery

An IC card having a secondary battery, which causes no increase in thickness and also has excellent safety, is provided. The IC card includes an antenna coil for inducing electric power by electromagnetic induction, a thin-film battery for storing electric power induced by the antenna coil, and a control portion for controlling the storage of the electric power from the antenna coil in the thin-film battery. The thin-film battery includes a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode.

IC card

A solid electrolyte cell includes: a positive electrode side layer having a positive electrode active material layer; a negative electrode side layer; and a solid electrolyte layer formed between the positive electrode side layer and the negative electrode side layer, wherein the positive electrode active material layer contains a lithium phosphoric acid compound which is in an amorphous state and is represented by the following formula (1),LiCuPO&#x2003;&#x2003;(1)

Growing community of inventors

Kanagawa, Japan

Tatsuya Furuya