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How to repair the lithium battery?

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How to repair the lithium battery?

Date of release:2019-02-27 Author: Click:

Measuring 4 power saving bottle to protect state, which is power saving and see bottles of lowest voltage compared with other sections, removed the power saving bottles, alone with a 12 v charger, press 2 current charging about 10 hours, reoccupy after full of around 25 watt bulb discharge 12 v to 10 v, calculate the discharge time, can see the battery discharge more than six hours; Do a few more cycles to see if you improve. If the discharge time is too short, you need to replace this section. Before the replacement can also do some experimental such as adding distilled water and sulfuric acid can improve. Other sections can also be recharged after a single section has been discharged. Repeat several times to actually calculate the power of these sections. The 20-ampere-hour battery should be able to discharge for 10 hours at a single-section 2-set current.


Lithium electric vehicle is lithium battery electric vehicle, refers to carries the electric vehicle lithium battery electric vehicle. In recent years, the environmental problems caused by traditional internal combustion engine vehicles and the shortage of petroleum resources make people focus on new energy vehicles. Pure electric vehicles (evs) have become an important development direction of evs because they can truly achieve "zero emission". The lithium ion battery becomes the ideal power source of the new generation electric vehicle because of its excellent performance.


The traditional structure of a lithium-ion battery includes a graphite anode, a cathode of lithium metal oxides, and an electrolyte (a solution of lithium salts dissolved in an organic solvent). The most common lithium ion batteries use carbon as the anode, ethylene carbonate and dimethyl carbonate as the electrolyte to dissolve lithium hexafluorophosphate solution, and lithium manganese dioxide as the cathode. It is light and strong, larger than energy, and the single voltage is about 3.7v.


Compared with nimh battery, the lithium battery of electric vehicle has relatively higher working voltage and larger specific energy, which is three times higher than that of nimh battery. Lithium ion battery is small in size, light in weight, long in cycle life, low in self-discharge rate, no memory effect and no pollution. The numerical range of a single battery performance index is wide, because lithium ion batteries have more electrode combinations, and they have certain differences in performance.


Lithium ion battery can be divided into lithium ion battery and lithium polymer battery. The cathode materials of lithium ion battery mainly include lithium cobalt oxide, lithium nickel oxide, lithium manganese oxide, lithium iron phosphate, etc. The anode materials mainly include graphite, lithium titanate, etc.


Measuring 4 power saving bottle to protect state, which is power saving and see bottles of lowest voltage compared with other sections, removed the power saving bottles, alone with a 12 v charger, press 2 current charging about 10 hours, reoccupy after full of around 25 watt bulb discharge 12 v to 10 v, calculate the discharge time, can see the battery discharge more than six hours; Do a few more cycles to see if you improve. If the discharge time is too short, you need to replace this section. Before the replacement can also do some experimental such as adding distilled water and sulfuric acid can improve. Other sections can also be recharged after a single section has been discharged. Repeat several times to actually calculate the power of these sections. The 20-ampere-hour battery should be able to discharge for 10 hours at a single-section 2-set current.


1. Reconfiguration: after the whole battery is damaged, we often carry out charge and discharge detection on it. During the inspection, it is often found that 50% of the batteries in a group are not damaged. To use the battery for about four months a hydrating, can prolong the service life of the battery, prolong the time averaged more than 3 months, it should be noted that, every time after filling water, batteries are used is in a state of charging the battery from the "quasi barren solution" to "barren solution" state, and the charge is beneficial to improve the battery capacity.


3. Vulcanization elimination: the battery repair equipment is adopted to eliminate the vulcanization of the battery.


4. Particle generator: the particle generator is connected in parallel with the battery to repair the battery. This method is also better for the repair, but because the repair is more thorough, so, if there is no discharge, for the continuous use of electric car lithium battery, often completely eliminate the possibility of battery vulcanization.


Electric lithium battery in the process of maintenance, first of all we need to know where the cause of the problems in it, each one fault of the solution will be different, then we will need to find the right solutions to deal with, through the above content I hope you learn to troubleshoot in maintenance in the future, and find the appropriate maintenance method.



Lithium battery for electric vehicle

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