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05-15
/ 2023
The damage to the battery varies with the degree of heating of the battery. As long as the battery works, it will heat up. That is because the chemical substances inside the battery are active and react to release energy during the discharge process. However, if the battery discharges too fast, it may be that the battery capacity is small and the discharge current exceeds 0.5C for a long time. It is emphasized here that although the battery consumes a certain amount of power after a short drive, after it is stationary, the battery has a recovery process, and the electrochemical process of the electrode plate continues, so the voltage will rise, but it does not mean that the capacity will rise; On the contrary, when driving for a long distance without stopping on the road, the electrification of the electrode plate and the consumption of electric energy are carried out at the same time.
05-01
/ 2023
The internal resistance of lead-acid battery refers to the resistance that the current flows through its interior when the battery is working. It is generally divided into AC internal resistance and DC internal resistance. Because the internal resistance of the rechargeable battery is very small, the polarization internal resistance is generated due to the polarization of electrode capacity when measuring the DC internal resistance, so its true value cannot be measured. However, the AC internal resistance can be measured without the influence of the polarization internal resistance, and the true internal value can be obtained.
04-24
/ 2023
1. The internal resistance of the battery consists of ohmic polarization (conductor resistance), electrochemical polarization and concentration polarization resistance. During the charging and discharging process, the resistance changes, and the internal resistance changes from large to small, on the contrary, the internal resistance increases.
04-10
/ 2023
During the production and design of commonly used storage batteries, the thicker end of the battery pile is a positive electrode, and the thinner end is a negative electrode. At the same time, you can identify the color of the battery pile. The positive electrode pile is dark brown, while the negative electrode is dark gray. In addition, the positive and negative marks of some batteries are expressed in English letters, that is, P represents positive electrode, and N represents negative electrode.
04-03
/ 2023
The colloidal battery uses a type of gel-like electrolyte. There is no free liquid inside, but there is a certain amount of "free water". The main components of the colloidal electrolyte are gelling agent and sulfuric acid, so can water be added to the colloidal battery? In fact, due to the airtightness of the colloidal battery, the water emitted is very rare and can be ignored. What if you add water blindly?
03-13
/ 2023
Several misunderstandings in the process of using batteries in general:
1. When using maintenance-free batteries, simply think that maintenance-free means that no maintenance is required.
02-27
/ 2023
There are many factors affecting the capacity of lead-acid batteries: discharge rate, temperature, termination voltage, plate geometry, electrolyte concentration, etc.
02-06
/ 2023
The batteries of traditional automobiles and new energy vehicles are divided into lead-acid batteries, nickel metal batteries, lithium ion and lithium polymer batteries, high temperature sodium batteries, metal air batteries, super capacitors, flywheel batteries, solar cells and graphene batteries, etc. There are two kinds of starting power supply and power supply. So far, electric vehicles are still inseparable from lead-acid batteries.
01-23
/ 2023
The lead-acid battery is generally composed of 3 or 6 single cells in series, consisting of plates, separators, electrolyte, a shell, poles and a liquid filler plug (not available for maintenance free batteries).
01-16
/ 2023
OPzV solid state lead battery is suitable for the renewable energy storage system in the environment with large temperature difference, unstable power grid or long-term power shortage. OPzV solid state lead battery allows users to have more autonomy, allowing the battery to be installed on the cabinet or rack, even next to office equipment. Thus, the space utilization rate is improved, and the installation and maintenance costs are reduced.
12-29
/ 2022
Battery discharge current. Generally speaking, it is the discharge rate. There are time rate and current rate for the discharge current of the battery. Discharge time rate refers to the length of time from discharge to termination voltage under certain discharge conditions. According to IEC standards, the discharge rates are respectively 20 hour rate, 10 hour rate, 5 hour rate, 3 hour rate, 2 hour rate, 1 hour rate, 0.5 hour rate, etc. The rated capacity of the battery is expressed in C. The capacity of the battery obtained at different discharge rates will be different.