Regarding the pros and cons of UPS lithium batteries, the general practice
is to apply technical professional testing equipment to make judgments, but this
type of special equipment is not something that users can have.
1, easy to distinguish from the surface. It's like the four-diagnosis
method in traditional Chinese medicine. The first thing to look at is the
consistency of the surface. For example, the appearance of the lithium battery
UPS is deformed or protruding. If such a situation occurs, it indicates that the
internal organic chemical structure of the lithium battery has long been
destroyed and belongs to the primary The selected team must be cleared.
2. In addition to inspecting the deformation conditions, it is also
necessary to check for liquid leakage, cracking, bursting, burning, or exposure
of internal liquid at the screw joints. Generally, these rechargeable batteries
have major product quality problems. The rechargeable battery is not only the
lithium battery UPS with shortcomings in appearance, but it cannot be selected.
It is not recommended to select the rechargeable battery of the same
manufacturer as it is to prevent safety production accidents and various
accidents during the entire application process. Various common faults.
3. Accurate measurement of internal load must be carried out. When it is
clear that there is no abnormal appearance, the general next process is to load
a certain amount of load on the lithium battery UPS in the working mode. If the
charging and discharging time of the lithium battery UPS cannot be achieved
After all normal charging and discharging time or the battery charging time is
sufficient, it is still unable to respond to all the normal standard reserved
time, it means that this rechargeable battery has already become brittle, and it
is no longer possible to consider everyone’s usual application requirements for
lithium batteries. NS.
High-rate batteries generally refer to lithium batteries. Lithium-ion
batteries are rechargeable high-rate batteries that mainly rely on lithium ions
to move between the positive and negative electrodes to work. During the
charging and discharging process, Li+ is intercalated and deintercalated back
and forth between the two electrodes: when recharging the battery, Li+ is
deintercalated from the positive electrode and inserted into the negative
electrode through the electrolyte, and the negative electrode is in a
lithium-rich state; the opposite is true during discharge. Generally, batteries
containing lithium elements are used as electrodes. It is a representative of
modern high-performance batteries. So what does the lithium battery time rate
and rate mean?
Hour rate is the discharge rate expressed by the discharge time, that is,
the time it takes to discharge the rated capacity at a certain current. For
example, the 20h rated capacity of Dongfeng brand EQl090E automobile lithium
battery is 105Ah, that is, C=105Ah, then the lithium battery should be
discharged with a current of 105÷20=, and it is qualified if it reaches 20h
continuously.
Multiplying rate means that the value of the discharge current of a certain
battery is a multiple of the rated capacity value. For the above-mentioned
EQl090E automotive lithium battery 6-Q-105, if the discharge current is
expressed as, it is discharged at a current of =; if the discharge current is
expressed as 3CA, it is discharged at a current of 3X105=315A.
Termination voltage refers to the lowest working voltage at which the
battery voltage drops to the point where it is no longer suitable for
discharging. Generally, the discharge termination voltage under high rate and
low temperature conditions is specified lower. Precautions when using high-rate
batteries: 1. Storage requirements: in an environment with a temperature of
25±5°C and a humidity of no more than 50%, avoid the corrosion of aluminum foil
by air and water vapor during transportation; 2. The carbon layer The heat
dissipation is worse than aluminum foil, so the belt speed and baking
temperature need to be fine-tuned when coating.
