Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Negative electrode composite for fluoride ion secondary battery, negative electrode and secondary battery for fluoride ion secondary battery using said composite, and method for producing said composite

A technology of fluoride ion and secondary battery, which is applied in the direction of secondary battery, battery electrode, non-aqueous electrolyte storage battery, etc. It can solve the problem that the defluorination/refluorination reaction cannot be carried out, and achieve the effect of high charge and discharge efficiency

Pending Publication Date: 2022-05-27
HONDA MOTOR CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at present, under the limitation of the reduction potential window of LBF, i.e. -2.41V, the defluorination / refluorination reaction of the negative electrode active material described above cannot proceed when considering its overvoltage.

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
  • Negative electrode composite for fluoride ion secondary battery, negative electrode and secondary battery for fluoride ion secondary battery using said composite, and method for producing said composite
  • Negative electrode composite for fluoride ion secondary battery, negative electrode and secondary battery for fluoride ion secondary battery using said composite, and method for producing said composite
  • Negative electrode composite for fluoride ion secondary battery, negative electrode and secondary battery for fluoride ion secondary battery using said composite, and method for producing said composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0160] In Example 1, as the negative electrode active material, aluminum and aluminum fluoride (AlF) were used with lithium (Li) metal. 3 ) modified aluminum fluoride obtained by modification. In addition, CeBaF is used as the fluoride ion-conductive fluoride. 2.95 , The conductive assistant uses acetylene black to make a composite of negative electrode composite materials for fluoride ion secondary batteries.

[0161] In Example 1, the first complex obtained by the first mixing step and the first complexing step, and the second complex obtained by the second mixing step and the second complexing step were used in the third mixing step. After mixing and passing through the third composite step, finally, the negative electrode composite material composite for a fluoride ion secondary battery of Example 1 was obtained. In addition, in Example 1, in the second mixing step, the production of modified aluminum fluoride was carried out.

[0162] [1st mixing step]

[0163] Weigh ...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

Provided are: a negative electrode composite material for a fluoride ion secondary battery, the negative electrode composite material being capable of achieving a charge-initiation type fluoride ion secondary battery with high initial charge / discharge efficiency in the fluoride ion secondary battery; a negative electrode for a fluoride ion secondary battery, and a secondary battery using the negative electrode composite material; and a method for producing the composite. According to the present invention, aluminum having a nanoparticle size and modified aluminum fluoride having pores formed by fluoride ion desorption are used as a negative electrode active material, and a composite is formed together with other components of a negative electrode composite material, whereby it is possible to suppress coating with aluminum fluoride formed by a refluorination reaction after defluorination. Consequently, particles of the negative electrode active material can be prevented from being agglomerated.

Description

technical field [0001] The present invention relates to a composite negative electrode composite material for a fluoride ion secondary battery, a negative electrode for a fluoride ion secondary battery and a secondary battery using the composite body, and a method for producing the composite body. Background technique [0002] Conventionally, lithium ion secondary batteries have been widely used as secondary batteries having high energy density. The lithium ion secondary battery has a structure with a separator between the positive electrode and the negative electrode, and is filled with a liquid electrolyte (electrolytic solution). [0003] The electrolyte solution of a lithium ion secondary battery is usually a combustible organic solvent, and therefore, there is a problem in safety especially with respect to heat. Therefore, a solid-state battery using an inorganic-based solid electrolyte instead of an organic-based liquid electrolyte has been proposed (see Patent Docume...

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): H01M10/05H01M4/36H01M4/38H01M4/58H01M4/62H01M10/0562
CPCH01M4/36H01M4/58H01M4/38H01M10/05H01M4/62H01M10/0562Y02E60/10H01M4/136C01F7/50H01M4/582H01M2004/021H01M2004/027H01M4/1397C01P2006/40
Inventor 田中觉久森田善幸
Owner HONDA MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com