Manufacturing apparatus for solid-state secondary battery and method for manufacturing solid-state secondary battery

Patent metadata

Field	Value
Publication number	US-2025125329-A1
Application number	US-202418999021-A
Country	US
Kind code	A1
Filing date	Dec 23, 2024
Priority date	Apr 30, 2019
Publication date	Apr 17, 2025
Grant date	—

Abstract

An object is to achieve a manufacturing apparatus that can fully automate the manufacturing of a solid-state secondary battery. A mask alignment chamber, a first transfer chamber connected to the mask alignment chamber, a second transfer chamber connected to the first transfer chamber, a first film formation chamber connected to the second transfer chamber, a third transfer chamber connected to the first transfer chamber, and a second film formation chamber connected to the third transfer chamber are included. The first film formation chamber has a function of forming a positive electrode active material layer or a negative electrode active material layer by a sputtering method, the second film formation chamber has a function of forming a solid electrolyte layer by co-evaporation of an organic complex of lithium and SiOx (0<x≤2), and a substrate is transferred between the mask alignment chamber and the first film formation chamber and between the mask alignment chamber and the second film formation chamber without being exposed to the air.

First claim

1 . A secondary battery comprising:
a first positive electrode; a first negative electrode; a first electrolyte between the first positive electrode and the first negative electrode, the electrolyte comprising a lithium complex and silicon oxide.

2 . The secondary battery according to claim 1 , wherein the lithium complex is 8-hydroxyquinolinato-lithium.

3 . The secondary battery according to claim 1 , wherein the electrolyte is solid-state.

4 . The secondary battery according to claim 1 ,
wherein the first negative electrode comprises:
a negative electrode current collector;
a first negative electrode active material layer on one surface of the negative electrode current collector; and
a second negative electrode active material layer on the other surface of the negative electrode current collector.

5 . The secondary battery according to claim 1 , further comprising:
a second electrolyte; a second positive electrode; a third electrolyte; and a second negative electrode; wherein the first positive electrode, the first electrolyte, the first negative electrode, the second electrolyte, the second positive electrode, the third electrolyte and the second negative electrode are stacked in this order, and wherein each of the second electrolyte and the third electrolyte comprises 8-hydroxyquinolinato-lithium and silicon oxide.

6 . The secondary battery according to claim 5 , wherein the first positive electrode and the second positive electrode are connected in parallel.

7 . The secondary battery according to claim 1 , further comprising a substrate,
wherein one of the first positive electrode and the negative electrode is on an upper surface of the substrate, and wherein the first electrolyte is in contact with an edge of the first positive electrode, an edge of the first negative electrode, and the upper surface of the substrate.

8 . An electronic device comprising the secondary battery according to claim 1 .

Assignees

• Semiconductor Energy Lab

Inventors

• Kuriki Kazutaka
• Tajima Ryota
• Yoneda Yumiko
• Yamazaki Shunpei

Classifications

• C23C14/568

  Transferring the substrates through a series of coating stations (C23C14/562 takes precedence) · CPC title

• H01M10/0585 Primary

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title

• H01M10/0562

  Solid materials · CPC title

• C23C14/042 Primary

  using masks · CPC title

• H01M2300/0071

  Oxides · CPC title