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Structure and Principle of Lead-acid Battery 2017-09-11 10:56:25

Lead-acid batteries are lead and lead dioxide as the battery anode and cathode active material, dilute sulfuric acid as the electrolyte of the chemical energy storage device, with high energy conversion efficiency, long cycle life, high voltage, high security, cost-effective, Installation and maintenance of simple features, is currently all kinds of energy storage, emergency power supply, start the preferred chemical power plant.


1. Basic structure

1) plate: positive and negative plates are coated with a special alloy plate on the active material obtained by the plate in the charge and discharge storage and release of energy to ensure that the battery capacity and reliable performance.


2) partition: is placed in the middle of the battery positive and negative isolation media to prevent the battery directly and directly contact with the short circuit of the device, different types of lead-acid battery separator material is different from the main valve to AGM, PE, PVC-based.


3) Electrolyte: lead-acid battery electrolyte is prepared with distilled water dilute sulfuric acid, electrolyte in the charge and discharge play between the positive and negative ions to play the role of ions, and thus the electrolyte must be no impurities.


4) Containers (battery cover): battery covered containers, electrolytes and plates are in the container, the main support role, while preventing internal material spill, external substances into the internal structure of polluting the battery.


2. Working Principle

Lead-acid battery works by electrochemical reaction, electrical energy and chemical energy between the mutual conversion, the electrode is mainly made of lead and its oxide, the electrolyte is a sulfuric acid solution of a battery.

Discharge state, the main component of the main lead dioxide, the main component of lead is lead.


Charging state, the main components of the positive and negative are lead sulfate.

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