Lithium battery manufacturers to analyze the use of lithium-ion power batteries and maintenance methods. In the current commercial application of power batteries, lithium-ion batteries have the advantages of high specific energy, long cycle life, low self-discharge rate, wide operating temperature range, no memory effect, no pollution to the environment, etc., the most favored by the market. The following lithium battery manufacturers to analyze the use of lithium-ion power batteries and maintenance methods.
Lithium battery manufacturers to analyze the use of lithium-ion power battery and maintenance methods
From the current level of lithium-ion power battery monomer manufacturing process, the impact of various factors in the production process makes the same type of monomer battery will also produce deviations in voltage, capacity, internal resistance, etc. The performance of the power battery pack is determined by the performance of the battery monomer, but never the simple accumulation of individual battery performance.
Due to the existence of inconsistency in the performance of the single cell, the power battery pack is repeatedly used in electric vehicles, resulting in a variety of problems in the power battery pack and thus shortening the service life. Due to the current bottleneck in the development of lithium-ion power battery technology, the research on power battery will help the development of lithium-ion power battery in electric vehicles and improve the efficiency of lithium-ion power battery use.
The use of lithium-ion power battery
1、Before installation and during use, if the battery is found to have abnormal mechanical characteristics such as bulging, shell rupture, shell melting and deformation, shell twisting and deformation, immediately stop using the battery and store it separately.
2、When the meter shows low power, the lithium-ion power battery should be charged in time to avoid the normal use of the battery due to power battery loss, and even shorten the service life of the power battery.
3, the use of the process found that the battery temperature exceeds 60 ℃, should immediately stop using the battery, the battery will be set aside separately, if the temperature continues to rise it is necessary to use sand and soil buried.
4, when charging and discharging try to avoid water or other conductive objects splashed on the battery cover and the pole column.
Lithium-ion power battery routine maintenance methods
1. Charging operation should be watched by professionals, ensure that the plug and socket are in good contact during the charging process, ensure that the charging equipment is working properly, and ensure that the battery pack is in good contact with each connection point. If abnormalities occur, they need to be repaired before charging.
2. checking the battery voltage, temperature, differential pressure and other status displayed on the display of the BMS before charging and discharging to ensure that all values are within the normal range.
3. check the appearance of the battery pack: the battery pack cover and electrode column should be clean, there should be no dust, metal shavings and other dirt present, if so, compressed air should be used to clean; the battery pack shell should not have cracks, bulging, deformation, loose poles and other abnormal conditions.
4. Battery pack leakage detection: In order to reduce the working current of the electric equipment of electric vehicles, the working voltage of the lithium-ion battery pack generally adopts a voltage specification of more than 300V DC. The automotive lithium-ion power battery pack has high insulation requirements, and the insulation performance of electric vehicles is measured by the insulation resistance of the DC positive and negative bus bars of the battery pack to the lap, which meets the safety requirements.
Lithium-ion power batteries often face storage problems in the production and use process, due to the existence of self-discharge of the battery will lead to loss of battery capacity in the storage process, therefore, the storage process requires appropriate maintenance methods to ensure the capacity and performance of the battery.
The cost, energy density, power density, safety, lifetime, operating temperature range, predictability and recycling capability of power batteries are expected in the next 20 years. Through the development and breakthrough of power battery in various fields, we believe that the future power battery has higher safety, energy density, power density and lower cost in a wide range of fields, and can better serve mankind.
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