Tell you more about the 12v lead-acid battery models

Lead-acid battery introduction

The electrode is mainly made of lead and its oxide, and the electrolyte is a battery of a sulfuric acid solution. English: Lead-acid battery. In the discharge state, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the state of charge, the main components of the positive and negative electrodes are lead sulfate. It is divided into exhaust battery and maintenance-free lead-acid battery.

Battery is mainly composed of tubular positive plate and negative plate, electrolyte, separator, battery case, battery cover, a column, filler cap, etc. Exhaust type of battery is made up of lead and lead oxide electrodes. Electrolyte is sulfuric acid aqueous solution. The main advantage is that the voltage stability, the price is cheap; Shortcoming is lower than can (that is, the storage battery power) per kilogram, short service life and maintenance frequency. Old-fashioned common battery life in 2 years, and to periodically check the height of the electrolyte and add distilled water. But with the development of science and technology, the life of the lead-acid battery maintenance is become more and more simple.

Lead-acid battery is marked by the top have to unscrew the plastic sealed cover, with the air vent. The filler cap is used for filling water, electrolyte and emissions. According to the theory, each time the lead-acid battery need maintenance check the electrolyte density and liquid level height, if there is a lack of need to add distilled water. However, as the battery manufacture technology upgrade, lead-acid battery development for lead-acid maintenance-free battery and colloid and maintenance-free batteries, lead-acid battery to add electrolyte or use distilled water. Mainly using the positive produce oxygen can be in negative oxygen absorption to circulation, can prevent the water cut. Lead-acid battery is mostly used in tractors, tricycles, motor starting, etc., and maintenance-free lead-acid battery application is wider, including uninterruptible power supply, electric power, electric bicycle batteries, etc. Lead-acid battery according to the need of application can be divided into constant exile electric (such as uninterruptible power supply) and instantaneous discharge (such as automobile starting batteries).

The classification of the lead-acid battery

1) Common battery: Common battery plate is made up of lead and lead oxide, the electrolyte is sulfuric acid aqueous solution. It is the main advantage of voltage stability, the price is cheap; Shortcoming is lower than can (that is, the storage battery power) per kilogram, short service life and maintenance frequency.

2) Dry-charged battery: Its full name is dry-charged lead-acid battery. Its main feature is that the negative plate has high storage capacity. In the completely dry state, it can save the obtained power within two years. When you just need to add the electrolyte, wait 20-30 minutes to use.

3) Maintenance-free battery: Maintenance-free battery due to its own structural advantages, the consumption of electrolyte is very small, and it is basically unnecessary to supplement distilled water during the service life. It also has the characteristics of shock resistance, high temperature resistance, small size and small self-discharge. The service life is generally twice that of a normal battery. There are also two kinds of maintenance-free batteries on the market: the first one does not require maintenance (adding replenishing liquid) after the one-time addition of electrolyte at the time of purchase; the other is that the battery itself has been charged with electrolyte and sealed. The user cannot add replenishing liquid at all.

Lead-acid battery model

JB2599-1985 by machinery industry standard "lead-acid battery product model establishment method" regulation, lead-acid battery model consists of three parts, the content and the arrangement is as follows:

Series single cell number - cell types - battery features - battery capacity

(1) Series single cell number

Series of single cell battery number refers to the number of the single cell battery assembly contains, expressed in an Arabic numerals.

(2) Battery type

According to its main use, in a Chinese pinyin letters, start type lead-acid battery "Q", said the code "Q" is "up" the first Chinese phonetic alphabet.(M for motorcycle battery, JC shipping battery, HK forspecial battery, D said electric vehicle batteries, F said valve control type battery.)

(3)Battery characteristics

Battery characteristics for the additional part, in a Chinese pinyin letters, only has some characteristics in similar usage of products, and in the model must be used when difference. When the product has two kinds of characteristics at the same time, should according to table 2-2 order to two codes for logo.

(4) The rated capacity

Rated capacity refers to the 20 h rated capacity, discharge rate expressed with Arabic Numbers, unit for a. h, can be omitted in the model. Sometimes behind the rated capacity in a letters special performance, such as "G" said starting rate high, "S" said plastic shell, "D" said good cold starting.

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