Unlock instant, AI-driven research and patent intelligence for your innovation.

Secondary battery

A secondary battery and electrode technology, applied in secondary batteries, circuits, positive electrodes, etc., can solve the problems of reduced ion conductivity, lithium generation, and reduced adhesion

Pending Publication Date: 2022-07-19
HONDA MOTOR CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the adhesiveness decreases due to repeated expansion and contraction during charging and discharging, lithium electrodeposition occurs and ion conductivity decreases.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Secondary battery
  • Secondary battery
  • Secondary battery

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0035]

[0036] like figure 1 As shown, this embodiment of figure 1 The lithium ion secondary battery 100 is a solid-state battery, and is an electrode laminate in which a positive electrode 10 , a solid-state electrolyte layer 30 , and a negative electrode 20 are alternately laminated. The positive electrode tab 11 and the negative electrode tab 21 extend from one end of the current collector of each electrode of the electrode laminate, respectively, figure 1 It is a figure which shows the state before the tabs are bundled, and the bundle part is abbreviate|omitted.

[0037] Next, the respective constituent members will be described.

[0038]

[0039] In this embodiment, in each of the positive electrode 10 and the negative electrode 20 , the current collectors are constituted by metal porous bodies having pores (communicating pores) that are continuous with each other.

[0040] The hole portion of each current collector is a composite material filled region in which a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The problem to be solved by the present invention is to improve the adhesion between an electrode mixture and a solid electrolyte, suppress the electrodeposition of lithium, and ensure ion conductivity. In order to solve the problem, this lithium ion secondary battery (100) is obtained by alternately laminating: a positive electrode in which pores of a metal porous body constituting an electrode current collector are filled with an electrode mixture; a first solid electrolyte layer filled with a solid electrolyte in the pores of the resin porous body; and a negative electrode in which pores of a metal porous body constituting the electrode current collector are filled with an electrode mixture.

Description

technical field [0001] The present invention relates to a secondary battery. Background technique [0002] Conventionally, as a secondary battery having a high energy density, a lithium ion secondary battery has been widely used. In the case of a solid-state battery in which the electrolyte is a solid state, there is a cell configuration in which a solid-state electrolyte exists between the positive electrode and the negative electrode. A plurality of these single cells are laminated to constitute a solid-state lithium ion secondary battery. [0003] In the case of a solid-state battery, from the viewpoint of maintaining ion conductivity of lithium ions or the like, an electrode composite containing a positive electrode active material or a negative electrode active material is required to have sufficient adhesion to the solid electrolyte. When the adhesiveness decreases due to repeated expansion and contraction during charge and discharge, electrodeposition of lithium occ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0585H01M10/0525H01M10/056H01M4/13H01M4/80
CPCH01M10/0585H01M10/0525H01M10/056H01M4/13H01M4/80H01M2300/0068Y02P70/50H01M10/052H01M4/661H01M10/0562H01M2004/028H01M2004/027
Inventor 有贺稔之谷内拓哉大田正弘
Owner HONDA MOTOR CO LTD