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

Preparation method of lithium battery with Pd-Cu net/lithium metal composite material electrode

A composite material, lithium metal technology, applied in the manufacture of electrolyte batteries, electrode carriers/current collectors, non-aqueous electrolyte batteries, etc., can solve problems such as hidden dangers, battery failure safety, battery short circuit, etc. The effect of cycle life and good economic benefits

Pending Publication Date: 2020-12-18
SHANGHAI UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the uncontrollable growth of lithium dendrites in the prior art causes the internal short circuit of the battery, leading to battery failure and potential safety hazards, the purpose of the present invention is to overcome the shortcomings of the existing technology and provide a battery with Pd -The preparation method of the lithium battery of the Cu mesh / lithium metal composite electrode, using the composite material made by palladium (Pd) and copper mesh (Cumesh) as a three-dimensional current collector to regulate the deposition of metal lithium, thereby inhibiting the growth of lithium dendrites, Realize the manufacture of long-life lithium batteries

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
  • Preparation method of lithium battery with Pd-Cu net/lithium metal composite material electrode
  • Preparation method of lithium battery with Pd-Cu net/lithium metal composite material electrode
  • Preparation method of lithium battery with Pd-Cu net/lithium metal composite material electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Below in conjunction with specific implementation example, above-mentioned scheme is described further, and preferred embodiment of the present invention is described in detail as follows:

[0035] In this example, a preparation method of a lithium battery with a Pd-Cu mesh / lithium metal composite electrode uses a composite material made of palladium (Pd) and copper mesh (Cu mesh) as a three-dimensional current collector to suppress lithium The growth of dendrite, thereby realizes the preparation of long-life lithium battery, and its method comprises the steps:

[0036] (1) Prepare palladium nitrate mixed solution:

[0037] The palladium nitrate of 200mg is dissolved in the glass beaker that 40mL deionized water is housed, stir well, make palladium nitrate mixed solution;

[0038] (2) Preparation of Pd-Cu copper mesh composite material:

[0039] Put the cleaned Cu mesh into the palladium nitrate mixed solution prepared in the step (1), soak for 5 minutes, take out the...

Embodiment 2

[0059] This embodiment is basically the same as Embodiment 1, especially in that:

[0060] In this example, a preparation method of a lithium battery with a Pd-Cu mesh / lithium metal composite electrode uses a composite material made of palladium (Pd) and copper mesh (Cu mesh) as a three-dimensional current collector to suppress lithium The growth of dendrite, thereby realizes the preparation of long-life lithium battery, and its method comprises the steps:

[0061] (1) Prepare palladium nitrate mixed solution:

[0062] The palladium nitrate of 300mg is dissolved in the glass beaker that the deionized water of 60mL is housed, stir well, make palladium nitrate mixed solution;

[0063] (2) Preparation of Pd-Cu copper mesh composite material:

[0064] Put the cleaned Cu mesh into the palladium nitrate mixed solution prepared in the step (1), soak for 10 minutes, take out the Cu mesh, put it in a vacuum oven to dry, and finally make a Pd-Cu mesh composite Material;

[0065] (3)...

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
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a lithium battery with a Pd-Cu net / lithium metal composite material electrode. A composite material prepared from palladium and a copper net is used asa three-dimensional current collector, so that growth of lithium dendrites can be inhibited, and manufacturing of the lithium battery with long service life is realized. A composite material preparedfrom Pd and a copper net on the negative electrode of a lithium metal-based battery is used as a three-dimensional current collector, so that the growth of negative electrode lithium dendrites can beeffectively inhibited, and the cycle life of the battery is prolonged. Metal lithium serves as the negative electrode of the lithium battery and has ultrahigh theoretical specific capacity and lowestreduction potential, but growth of uncontrollable lithium dendrites can cause internal short circuit of the battery, so that the battery fails and potential safety hazards are caused. Through electroplating replacement reaction, Pd nanoparticles can be simply and quickly modified on the surface of the copper net, and the prepared Pd-copper mesh has a quite large surface area; Pd atoms in the Pd-copper net can be combined with Li and have very high affinity with Li, so that the growth of lithium dendrites can be effectively inhibited.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, in particular to a Pd-Cumesh / lithium metal (Li) electrode manufacturing method and a lithium battery manufacturing method. Background technique [0002] Compared with traditional secondary batteries such as lead-acid, nickel-cadmium, and nickel-metal hydride batteries, lithium batteries have many advantages, such as relatively high energy density, good cycle stability, no memory effect, and environmental friendliness. Lithium batteries are widely used in portable electronic products such as mobile phones and notebook computers, and also show broad application prospects in the fields of electric vehicles and drones. Although lithium batteries currently occupy a large energy storage market, with the rapid development of the economy and the continuous improvement of people's needs, the traditional lithium battery system has gradually been unable to keep up with the development needs of eme...

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): H01M4/66H01M4/74H01M4/1395H01M4/38H01M10/058
CPCH01M4/1395H01M4/665H01M4/661H01M4/745H01M4/382H01M10/058Y02E60/10Y02P70/50
Inventor 陈春华颜蔚张久俊王健宜傅倩茹
Owner SHANGHAI UNIV
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