Happy New Year imuwangjian~
There are several situations for your reference:
If it is charged on a qualified charger, it is no problem to charge for a long time, no It will affect battery life.
If charged on a faulty charger, prolonged charging will affect battery life.
If you charge it on a mobile phone, charging it for a long time will also affect the battery life.
Reason:
There is no need to go into detail about charging on a faulty base Haha, I think you figured it out too: the faulty base has no protective function. (Qualified cradle chargers will stop charging once fully charged and will not have any negative effect on the battery.)
It is not advisable to charge the mobile phone for a long time because the -it requires energy when in useized. or standby. When the phone battery is fully charged, the line charger will stop charging. However, after some time of inactivity, the battery voltage drops (the line charger thinks the battery is not full) and recharges. will cause a decrease in battery life (battery life is calculated based on the number of charges and uses)
Hope this can help you~
Will lithium iron phosphate batteries be damaged if charged for a long time (several days)?
Generally, the charging temperature of lithium batteries is 0 to 50° and the discharge temperature is -20 to 50°, so the temperature is within the use range, but the capacity released by lithium batteries also decreases as the temperature decreases, so your driving time is now a little shorter than in summer, butthe impact is not very significant. You said that the charging time is longer than before, which means that the capacity of your current battery is greater than before and the driving time should be correspondingly longer. Some dealers often refer to 10 Ah as having a capacity of 12 or more. a waste of money. 10Ah refers to the battery capacity, so the battery you buy now should be a good battery, at least better than the previous one. So don't hesitate to use it.
Long-term charging poses a great risk of damage and will affect its performance.
Lithium iron phosphate batteries produced by usual manufacturers will be equipped with protection boards when they reach a certain number (more than three groups) of circuits in series. However, protection cards do not have automatic power off. Generally, the panels ofprotection are too discharged. The charging adjustment range exceeds the normal use range of the battery. The function of the protective plate is only to prevent an explosion. You should not rely on the action of the skid plate to avoid. charge damage.
Lithium iron phosphate requires a special charger. The charging cut-off voltage of lithium iron phosphate is 3.6V, 3.2V is the rated voltage, and 2.5V is the rated discharge cut-off voltage. Phosphate batteries are safer than ordinary lithium-ion batteries generally will not explode if overcharged or overdischarged, but there is a high risk of damage from long-term charging, which will at least affect its performance.
Characteristics of lithium iron phosphate
1. High energy density
Theoretical specific capacity is 170mAh/g and the actual specific capacity of the product may exceedsser. 140 mAh/g (0.2 C, 25° C);
2. Safety
It is currently the safest lithium-ion battery cathode.The material does not contain any heavy metal elements harmful to the human body;
3. Long lifespan
Under 100% DOD conditions, it can be charged and discharged over 2000 hours. times ; (Reason: lithium iron phosphate. The stability of the network is good, and the insertion and extraction of lithium ions has little impact on the network, so it has good reversibility. The disadvantage is that the electronic ion transfer rate is low, and it is not suitable for high current charging and discharging, which hinders its application Solution: coating the electrode surface with conductive material and doping for. modify the electrode)
4. 5. Charging performance
Lithium batteries with lithium iron phosphate cathode material can be charged at a high rate and canbe fully charged in as little as an hour. Specific physical parameters:
Apparent density: 0.7 g/cm
Tapped density: 1.2 g/cm
Median diameter: 2-6 um
< p>Specific surface area <30 m/gSmear parameters: LiFePo4:C:PVDF=90:3:7
Compacted density of the pole piece: 2.1-2.4 g/cm Electrochemical properties: Gram capacity > 155 mAh/g Test conditions: half-cell, 0.2 C, voltage 4.0-2.0 V
Number of cycles: 2000 times
Domestic and International Lithium Iron Phosphate Material Manufacturers:
Domestic: Yunnan Huilong, Tianjin Strand, University of Beijing, Hunan Ruixiang Iron Tiger Energy, Taiwan Changyuan, Taiwan Likai, Zhengzhou Langtai, Hangzhou Sainz, etc.< p>International: the Canadian Photech, the American Valence, the American A123, the Japanese Sony Among them, the A123 is the largest and enjoys strong support from the US government.