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Briefly introduce the advantages and disadvantages of the battery

Briefly introduce the advantages and disadvantages of the battery

Release date:2018-11-29 author: clicks:

The main advantages of lithium batteries:


The ternary lithium-ion battery voltage platform is high: the average voltage of the single cell is 3.7V or 3.2V, which is equal to the series voltage of three nickel-cadmium batteries or nickel-hydrogen batteries, which is convenient for forming a battery power group;


Lithium battery advantages and disadvantages


The lithium battery has a high energy density relative to the battery. With high storage energy density, it has reached 460-600Wh/kg, which is about 6-7 times of lead-acid battery;


Compared with lead-acid batteries, lithium batteries are light in weight, and the weight in the same volume is about 1/5-6 of that of lead-acid products;


Lithium battery advantages and disadvantages


Lithium battery has a relatively long service life, and the service life can reach more than 6 years. The battery with lithium iron phosphate as the positive electrode is charged and discharged with 1CDOD, and there are 1000 records that can be used;


With high power bearing capacity, lithium iron phosphate lithium ion battery for electric vehicles can achieve 15-30C charge and discharge capacity, which is convenient for high-intensity start-up acceleration;


Low self-discharge rate, no memory effect;


The lithium battery has high adaptability to high and low temperature, and can be used in the environment of -20 ° C - 60 ° C. After the process treatment, it can be used in the environment of -45 ° C;


Lithium battery advantages and disadvantages


Green, no matter whether it is produced, used or scrapped, lithium iron phosphate lithium ion battery does not produce any toxic and harmful heavy metal elements and substances such as lead, mercury and cadmium.


Lithium battery defects / methods


Disadvantages of lithium batteries


Lithium batteries have poor safety and there is a danger of explosion.


Lithium batteries of lithium cobalt oxide materials cannot be discharged at a large current, and the safety is poor.


Lithium batteries need to protect the line to prevent the battery from being overcharged and discharged.


The production requirements are high and the cost is high.


At present, dry load batteries, ordinary batteries and maintenance-free batteries are three commonly used vehicle batteries.


A general storage battery is a battery in which an electrode of a battery is composed of an oxide of lead and lead, and an aqueous solution of sulfuric acid is used as an electrolyte. Stable voltage and low price make it more widely used, but it does not store as much power as other batteries, and it requires frequent maintenance and maintenance. Dry-charged lead-acid batteries, generally referred to as dry-charge batteries, can save power for 24 months in the case of complete drying. The charging speed is also much faster than that of an ordinary battery. Generally, charging can be completed in about half an hour. The biggest difference between the maintenance-free battery and other batteries is that it does not need to add electrolyte. Some maintenance-free batteries on the market even seal the electrolyte port when it is sold. Therefore, lithium manganese oxide lithium batteries do not allow users to add electrolytes at all. . The performance of the maintenance-free battery is much better than that of the two batteries. For example, it is shockproof, high temperature resistant, small in size, less self-discharged, and has a relatively long service life. However, the price will be relatively expensive, which also meets the needs of different people for the use of batteries.

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