China IT cabinet,Competitive Price IT cabinet

Lithium battery capacity loss cause analysis

Jun , 21 2023

Lithium-ion batteries are the fastest-developing secondary batteries after cadmium-nickel and nickel-hydrogen batteries. Its high-energy properties make its future look bright. However, lithium-ion batteries are not perfect, and their biggest problem is the stability of their charge-discharge cycle. This paper summarizes and analyzes the possible causes of capacity attenuation of Li-ion batteries,...

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7 Factors to Examine While Choosing a Lithium-Ion Battery Charger

Jul , 20 2023

From confirming an acceptable input voltage to features like protection design and safe charging mode, these factors can help you select the right lithium-ion battery charger 1. Acceptable Input Voltage An input higher than the voltage sustenance capacity of the charger may cause damage to its internal components. Most countries use a battery charger design of the universal global voltage 110-230V...

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Selection of the Function of Power Filter Capacitors

Aug , 10 2023

1 、The Role of Power Filter Capacitors The power filter capacitor is a type of capacitor connected in series between the power output and the load, mainly used to filter high-frequency noise in the power supply and ensure the stability and reliability of the power output. At the output end of the power supply, due to the conversion of AC power to DC power, there will be a certain AC component in t...

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The working principle of anti reverse diode

Aug , 10 2023

Anti reverse diode, also known as reverse protection diode, is a component used in a circuit to prevent reverse current from flowing in. This type of diode is usually composed of a PN junction diode. Under normal operating conditions, the pressure difference between its P and N poles will cause the diode to conduct, while under reverse conditions, this pressure difference disappears and the diode ...

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The Role of AC Capacitors in High Speed Circuits

Aug , 18 2023

1、Introduction For low-frequency circuits, resistors and capacitors can be analyzed as ideal devices. However, in high-frequency circuits, these two devices will not be "ideal". Today, our main discussion is about the issue of AC capacitors, which are commonly known as AC coupling capacitors. Their main function is to filter out the DC component of the signal, which is symmetrical about the X-axis...

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Lithium-ion battery terms explained

Aug , 18 2023

I. Battery voltage (V) 1. Open circuit voltage (OCV) The voltage of the lithium battery when it is not connected to an external circuit or load can generally be tested with a multimeter. 2. Operating voltage (WV) The potential difference between the positive and negative terminals of the battery under applied load, that is, when there is current flowing through the battery in the circuit. When the...

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Important performance of the battery

Sep , 04 2023

1, electrical performance: (1) Rated capacity: 0.5C discharge, single battery discharge time is not less than 2h, battery pack discharge time is not less than 108min (95%); (2) 1C discharge capacity: 1C discharge, single battery discharge time is not less than 57min (95%), battery pack discharge time is not less than 54min (90%); (3) Low temperature discharge capacity: 0.5C discharge at -20℃, the ...

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Interface level standards between digital systems

Sep , 09 2023

Preface When we constrain the FPGA project, we often see such level standards, such as LVCOM18, LVCOS25, LVDS, LVDS25, etc. In fact, these are a series of level standards, in order to have a deeper understanding of the level standards, the following excerpts from the book "The FPGA Way" for the explanation of the level standards to understand. Dual Threshold Standard The so-called dual-threshold s...

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How do lithium batteries screen distribution groups?

Sep , 19 2023

The inconsistency between single batteries often causes problems such as too fast capacity decay and short life during the cycle of battery packs. Improving the consistency of batteries is of great significance to the popularization and application of lithium-ion batteries. 1 Inconsistency analysis Definition of inconsistency The inconsistency of the lithium-ion battery pack means that after the s...

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Lithium battery performance key indicators - internal resistance knowledge

Oct , 13 2023

First, the definition and role of internal resistance (1) Definition of internal resistance Internal resistance refers to the resistance encountered by the current passing through the inside of the lithium battery during discharge or charging. It is determined by the conductivity of the material inside the battery, the ion transport rate of the electrolyte, the contact resistance between the elect...

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How to calculate the required ups load capacity?

Oct , 19 2023

Measured in “watts”, UPS load capacity is an important factor to consider when choosing a UPS (uninterruptible power supply). It determines how many electronic devices the UPS system can support. This post will tell you how to choose the right UPS with required UPS load capacity in the following four steps. Clarify UPS Measurement Units UPS systems are rated either in kilowatts (kW) or in kilo-vol...

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Lithium battery internal resistance - AC resistance and DC resistance

Oct , 27 2023

Resistance is a physical quantity that characterizes the degree of obstruction of circuit elements to current transmission. The internal resistance (internal resistance) of lithium batteries is one of the important indicators to evaluate the performance of batteries. In practical applications, the internal resistance of lithium batteries has three important roles: 1. It can be used to evaluate the...

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