Method for manufacturing carbon fiber reinforced lead alloy plate grid and winding lead-acid battery

A manufacturing method and technology of lead-acid batteries, applied to battery components, circuits, electrical components, etc., can solve the problems of ineffective coating of active materials, low weight specific energy of lead-acid batteries, and easy damage of wound battery grids and other problems, to achieve the effect of good high-current discharge performance, flexible placement and matching, and long service life

Active Publication Date: 2011-11-16
HANGZHOU CHAOTAN NEW MATERIAL TECH
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low weight-to-weight ratio of lead-acid batteries, their application in certain technical fields is limited, such as electric vehicles
[0003] Compared with traditional lead-acid batteries, coiled lead-acid batteries have higher weight-to-weight ratio energy. However, due to the limitation of the tensile strength of lead alloys, the grids of ordinary coiled battery grids are relatively small and dense. The amount of lead used is

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
  • Method for manufacturing carbon fiber reinforced lead alloy plate grid and winding lead-acid battery
  • Method for manufacturing carbon fiber reinforced lead alloy plate grid and winding lead-acid battery
  • Method for manufacturing carbon fiber reinforced lead alloy plate grid and winding lead-acid battery

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Embodiment 1: The manufacturing method of carbon fiber reinforced lead alloy grid, which is as follows:

[0031] (1) High-temperature degumming of carbon fiber cloth: The carbon fiber cloth is made of unidirectional long carbon fibers (only warp threads, no weft threads) and epoxy resin. The carbon fibers are arranged in an environment of 480 ° C and baked for 7 minutes to remove the epoxy resin finger.

[0032] (2) Carbon fiber impregnation: In anhydrous and inert gas protection, at room temperature, the carbon fiber cloth degummed in step (1) is immersed in liquid sodium-potassium alloy for 2 minutes, and then the carbon fiber cloth is slowly pulled out.

[0033] (3) Hot extrusion molding: After the carbon fiber cloth is impregnated in step (2), it is quenched to below 200°C with lead or lead alloy liquid under high temperature and high pressure (temperature is 540°C, pressure is 510Mpa), and then extruded. A sheet with a thickness of 1.0 mm was produced. Lead can be...

Example Embodiment

[0039] Embodiment 2: the manufacturing method of carbon fiber reinforced lead alloy grid, it is as follows:

[0040] (1) High-temperature degumming of carbon fiber cloth: The carbon fiber cloth is made of unidirectional long carbon fibers (only warp threads, no weft threads) and epoxy resin. The carbon fibers are arranged in an environment of 455 ° C and baked for 9 minutes to remove the epoxy resin finger.

[0041](2) Carbon fiber impregnation: In anhydrous and inert gas protection, at room temperature, immerse the carbon fiber cloth degummed in step (1) into the liquid sodium-potassium alloy for 1.5 minutes, and then slowly pull out the carbon fiber cloth.

[0042] (3) Hot extrusion molding: After the carbon fiber cloth is impregnated in step (2), it is quenched to below 200°C with lead or lead alloy liquid under high temperature and high pressure (temperature is 460°C, pressure is 540Mpa). A sheet with a thickness of 1.0 mm was produced. Lead can be 1# lead, lead alloy can...

Example Embodiment

[0045] Embodiment 3: the manufacturing method of carbon fiber reinforced lead alloy grid, it is as follows:

[0046] (1) High temperature degumming of carbon fiber cloth: The carbon fiber cloth is made of unidirectional long carbon fibers (only warp threads, no weft threads) and epoxy resin. The carbon fibers are arranged in an environment of 495 ° C and baked for 5 minutes to remove the epoxy resin finger.

[0047] (2) Carbon fiber impregnation: Under the protection of anhydrous and inert gas, at room temperature, immerse the carbon fiber cloth degummed in step (1) into the liquid sodium-potassium alloy for 3 minutes, and then slowly pull out the carbon fiber cloth.

[0048] (3) Hot extrusion molding: After the carbon fiber cloth is impregnated in step (2), it is quenched to below 200°C together with lead or lead alloy liquid under high temperature and high pressure (temperature of 500°C and pressure of 530Mpa), and then extruded. A sheet with a thickness of 1.0 mm was produc...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Widthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for manufacturing a carbon fiber reinforced lead alloy plate grid and a winding lead-acid battery. The method comprises the following steps: (1) degumming carbon fiber sheets at a high temperature: arranging the carbon fiber sheets in an environment of 450-500 DEG C and roasting for 5-10 minutes to remove the epoxy resins, wherein the carbon fiber sheets are made from unidirectional long carbon fibers and epoxy resins; (2) soaking the carbon fibers: soaking the carbon fiber sheets in a liquid sodium-potassium alloy in an anhydrous and inert gas protection atmosphere and then taking out the carbon fiber sheets; (3) carrying out hot extrusion forming: quenching carbon fiber sheets and a lead or lead alloy liquid to below 200 DEG C, and extruding to manufacture a plate, wherein the lead or lead alloy liquid is at the temperature of 450-500 DEG C and the pressure of the lead or lead alloy liquid is 500-550Mpa; (4) rolling: rolling to form the plate; and (5) punching: punching to form holes. The prepared carbon fiber reinforced lead alloy plate grid is high in tensile strength, good in electroconductibility, light in weight and good in corrosion resistance, and can be coated with more active substances in unit area. The winding lead-acid battery prepared by the plate grid has the advantages of higher mass specific energy and volumetric specific energy.

Description

technical field [0001] The invention belongs to the technical field of winding lead-acid battery manufacturing, and in particular relates to a method for manufacturing a carbon fiber reinforced lead alloy grid and a winding lead-acid battery. Background technique [0002] Due to its stable performance and low price, lead-acid batteries have been widely used in energy, communication, electric power, transportation and military fields for many years. However, lead-acid batteries have a low weight-to-energy ratio, which limits their application in certain technical fields, such as electric vehicles. [0003] Compared with traditional lead-acid batteries, coiled lead-acid batteries have higher weight-to-weight ratio energy. However, due to the limitation of the tensile strength of lead alloys, the grids of ordinary coiled battery grids are relatively small and dense. The amount of lead used is large, and the active material cannot be effectively coated, thereby limiting the imp...

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
IPC IPC(8): H01M4/82H01M4/68H01M2/28H01M50/541
CPCY02E60/12Y02E60/10
Inventor 汪训国
Owner HANGZHOU CHAOTAN NEW MATERIAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap