Lead storage battery

A technology of lead-acid batteries and electrolytes, which is applied in the direction of lead-acid batteries, lead-acid battery electrodes, lead-acid battery construction, etc., and can solve problems such as inability to obtain large effects

Active Publication Date: 2014-06-25
HITACHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent Document 5 discloses an invention for increasing the discharge capacity of the battery, but it cannot achieve a large improvement in charge acceptance and cycle characteristics at PSOC, which are required for lead-acid storage batteries for idling-stop trains and power generation control vehicles. Effect

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0135] First, an unchemically formed positive electrode plate is produced. Water is added to a mixture of lead oxide, trilead tetroxide, and short fibers (polyethylene terephthalate short fibers, the same applies hereinafter), followed by kneading, followed by adding dilute sulfuric acid in small portions. , thereby producing an active material paste for positive electrodes. This active material paste was filled in a ductile current collector produced by subjecting a rolled sheet made of a lead alloy to a ductile process, and was aged for 24 hours in an atmosphere of 40° C. and a humidity of 95%, followed by drying. An unchemically formed positive plate was produced.

[0136]Next, an unchemically formed negative electrode plate was produced. To a mixture of lead oxide, short fibers, barium sulfate, carbon black as a carbonaceous conductive material, and bisphenol A-aminobenzenesulfonic acid sodium salt-formaldehyde condensate as an organic compound that suppresses the coarse...

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Abstract

Provided is a fluid-type lead storage battery wherein charging is performed intermittently for a short duration each time, and high-rate discharging to a load is performed in a partial state of charge, said lead storage battery improving the charge acceptance and the PSOC life characteristic relative to the prior art. A positive electrode plate is used that has a positive-electrode active substance total surface area per unit electrode plate group volume set in a range of between 3.5 and 15.6 m2/cm3. A negative electrode plate is used in which a carbonaceous conductive material and an organic compound that inhibits coarsening of a negative-electrode active substance accompanied by charging/discharging are added to the negative-electrode active substance. Moreover, compounds chosen from among cationic coagulant, cationic surfactant and phosphoric acid are added to an electrolyte, improving the charge acceptance and the life performance.

Description

technical field [0001] The present invention relates to a liquid-type lead storage battery having an electrolytic solution released from an electrode plate group and a separator in a cell. Background technique [0002] Lead-acid batteries are inexpensive and highly reliable, and are widely used as power sources for starting automobiles, power sources for electric vehicles such as golf carts, and further as power sources for industrial equipment such as uninterruptible power supply devices. [0003] In recent years, in the field of automobiles, various measures to improve fuel consumption are being studied in order to prevent air pollution and global warming. As automobiles for which measures to improve fuel consumption have been implemented, idling-stop vehicles (hereinafter referred to as ISS vehicles) that reduce the operating time of the engine, and power generation control that uses engine rotation for power without waste are being studied. A micro hybrid car such as a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/06H01M4/14H01M4/62H01M10/08H01M10/12
CPCH01M4/14H01M10/12H01M2300/0005H01M4/625H01M10/44Y02T10/7016H01M4/627H01M4/628H01M10/08Y02E60/126H01M10/06Y02E60/10Y02P70/50
Inventor 柴原敏夫箕浦敏木暮耕二
Owner HITACHI CHEM CO LTD
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