Negative electrode compound of lead-carbon battery and lead-carbon battery prepared by negative electrode compound

A lead-carbon battery and composition technology, used in battery electrodes, lead-acid batteries, circuits, etc., can solve problems such as grid expansion and deformation, and achieve the effects of extending service life, good low-temperature starting performance, and improving power performance

Active Publication Date: 2014-06-11
JIANGXI ZHENGTUO NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Another object of the present invention is to provide a negative electrode composition for lead-carbon batteries. The technical problem to be solved is to avoid the expansion and deformation of the grid, so that it is more suitable for practical use.

Method used

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  • Negative electrode compound of lead-carbon battery and lead-carbon battery prepared by negative electrode compound

Examples

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Effect test

Embodiment 1

[0049] Embodiment 1 is a control test. The carbon powder (carbon material) used in Examples 1-8 has a "shell-core" type microscopic spherical structure, and its inner core is one of spherical natural graphite, spherical artificial graphite, and mesophase carbon microspheres or the interaction between the three. Mixed material, the outer shell is a graphitized product of asphalt, the interlayer distance between the inner core and the outer shell is 0.3360-0.3390nm, the pore diameter of the carbon powder is 10-50nm, and the specific surface area is 4-6m 2 / g; The structural formula of lithium vanadate used is LixV 3 o 8 , wherein the x value is between 1-3; the adhesive used is selected from one or more of PTFE, CMC or neoprene rubber; the hydrogen evolution inhibitory additive used is selected from silver oxide, zinc oxide or copper oxide one or more of.

[0050] In Example 8, the adhesive used is CMC, and the hydrogen evolution suppressing additive used is copper oxide.

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Abstract

The invention discloses a negative electrode compound used for preparing a lead-carbon battery. The negative electrode compound mainly comprises lead powder, water and sulfuric acid and is characterized by further comprising carbon powder and lithium vanadate. The negative electrode compound has the advantage of being strong in vulcanization resistance, low in capacity attenuation and good in low temperature starting performance; meanwhile, the lead-carbon battery provided by the invention has the advantage of being high in output voltage, better in low temperature resistance, good in deep discharge performance and capable of avoiding expansion and sulfation, thereby being practical.

Description

technical field [0001] The invention relates to a battery, in particular to a negative electrode composition for a lead-carbon battery. Background technique [0002] Ordinary lead-acid batteries have the advantage of low cost, but their short cycle life leads to higher energy storage costs per unit of time. [0003] Lead-carbon battery is a capacitive lead-acid battery, which is a technology evolved from traditional lead-acid batteries. It adds activated carbon to the negative electrode of lead-acid batteries, which can significantly improve the life of lead-acid batteries. The positive electrode active material of ordinary lead-acid batteries is lead oxide (PbO2), and the negative electrode active material is lead (Pb). If all the negative electrode active materials Pb are replaced with activated carbon, the ordinary lead-acid battery becomes a hybrid capacitor; In the negative electrode active material Pb, the ordinary lead-acid battery becomes a lead-carbon battery. Lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/62
CPCH01M4/57H01M4/625H01M4/627H01M4/628H01M10/06Y02E60/10
Inventor 罗建伟黄雨生杨建锋程海燕周新
Owner JIANGXI ZHENGTUO NEW ENERGY TECH CO LTD
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