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Solid-state battery

A solid battery and solid electrolyte layer technology, which is applied in the direction of batteries with solid electrolytes, lithium batteries, secondary batteries, etc.

Pending Publication Date: 2021-06-22
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the battery with the above configuration, there is a risk of electrolyte leakage

Method used

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Embodiment Construction

[0055] [solid battery]

[0056] The invention provides a solid battery. The "solid battery" mentioned in this specification refers to a battery whose constituent elements (especially the electrolyte layer) are made of solid in a broad sense, and in a narrow sense refers to a "full battery" whose constituent elements (especially all of the constituent elements) are made of solid. Solid State Batteries". The term "solid battery" in this specification includes a so-called "secondary battery" that can be repeatedly charged and discharged, and a "primary battery" that can only be discharged. The "solid battery" is preferably a "secondary battery". "Secondary battery" is not limited to this name, and electrochemical devices such as "electric storage device" may be included, for example.

[0057] The term "observation from above" in this specification refers to observing the object from the upper side or the lower side (especially the upper side) along the lamination direction L (...

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Abstract

The present invention provides a solid-state battery in which it is possible to more fully suppress connection failure between an electrode layer (i.e., a positive electrode layer and / or a negative electrode layer) and an end electrode. The present invention pertains to a solid-state battery 100A in which one or more positive electrode layers 1 and one or more negative electrode layers 2 are alternately stacked with a solid electrolyte layer 3 interposed therebetween, wherein: the solid-state battery has positive and negative end electrodes 4 (4a, 4b) at the end surfaces of the stacked structure; and the positive electrode layers and / or the negative electrode layers have, at the end part (A1, B1) on the side of the end electrode having the same polarity as the electrode layer in question, a concave-convex shape in plan view, and are electrically connected to the end electrode having the same polarity as the electrode layer in question.

Description

technical field [0001] The present invention relates to solid state batteries. Background technique [0002] In recent years, the demand for batteries as a power source for portable electronic devices such as mobile phones and portable personal computers has increased significantly. In a battery used for such an application, an electrolyte (electrolyte solution) such as an organic solvent has conventionally been used as a medium for moving ions. However, in the battery having the above configuration, there is a risk of leakage of the electrolytic solution. In addition, organic solvents and the like used in the electrolytic solution are flammable substances. Therefore, it is required to improve the safety of batteries. [0003] Therefore, in order to improve the safety of the battery, research into a solid battery using a solid electrolyte instead of an electrolytic solution as an electrolyte is underway. [0004] As a solid battery, for example, a solid battery is disclo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/18H01M4/13H01M4/70H01M10/052H01M10/0562H01M10/0585H01M50/533
CPCH01M10/052H01M6/18H01M10/0562H01M10/0585Y02E60/10Y02P70/50H01M50/531H01M2004/021H01M2004/025H01M2300/0065
Inventor 大嶋贤二吉冈充近川修
Owner MURATA MFG CO LTD
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