China power battery,Competitive Price power battery

Impact of high temperature on battery safety performance

Mar , 30 2024

Lithium battery temperature is too high, more than 45℃ Lithium-ion batteries are more and more widely used in people's production and life, which makes its temperature environment become the main point of concern, relatively speaking, lithium batteries are easier to produce safety problems in high temperature environment, therefore, it is necessary to test the high temperature performance of lithi...

more

Is DC-DC converter suitable for railway applications, powered directly by batteries

Apr , 02 2024

DC/DC power converters are suitable for harsh mechanical and electrical environments in traction vehicles and locomotive applications. It has an ultra wide input voltage range from 16V to 160V and covers all input power systems in railway applications, including 24V, 28V, 36V, 48V, 72V, 96V, and 110VDC. Due to the increase in onboard electronic systems, the use of ultra wide input voltage converte...

more

Influence of self-discharge of lithium battery on lithium battery

Apr , 13 2024

I. Introduction The existence of self-discharge phenomenon of lithium battery has become an important factor restricting its performance and life. In this paper, the principle, influencing factors and countermeasures of lithium battery self-discharge are discussed. Second, the principle of lithium battery self-discharge Self-discharge refers to the phenomenon that the battery capacity automaticall...

more

Reason analysis of low capacity of lithium battery cell

Apr , 13 2024

In the process of lithium battery manufacturing, the capacity of lithium battery cells is sometimes lower than expected, which not only affects the performance of the battery, but also shortens its service life. This paper will deeply analyze the reasons for the low capacity of lithium battery cells, in order to provide reference for related research and production. 1. Excessive and insufficient n...

more

THE RELATIONSHIP BETWEEN APPARENT POWER, ACTIVE POWER, AND REACTIVE POWER

Apr , 20 2024

The apparent power, active power, and reactive power meet the following triangular relationships: Figure (1): Schematic diagram of the power triangle S:Apparent power S 2 =P 2 + Q 2 Q:Reactive power P = S *cosφ

more

Long-term storage methods for lithium batteries and storage requirements for lithium iron phosphate batteries

Apr , 20 2024

What impact will the lithium battery have after being put aside for a long time? When the lithium battery is idle, due to the nature of the battery itself, self-discharge, passivation of positive and negative electrode materials, electrolyte decomposition and other phenomena will occur. The instability of the negative SEI will lead to the rapid decline of the negative active substance, which is ea...

more

What is the impact of low temperature on lithium batteries and solutions

Apr , 20 2024

The use of lithium batteries in low battery temperature environments is limited. In addition to a severe drop in discharge capacity, lithium batteries cannot be charged when the battery temperature is low. When the battery is charged at low temperature, the lithium ion embedment on the battery graphite electrode and the lithium plating reaction exist simultaneously and compete with each other. Und...

more

Causes, effects and measures of common problems of photovoltaic modules

Apr , 26 2024

First. Excessively high/low temperature Excessively high or low PV module temperatures can negatively affect the performance of the PV power system. The following are the causes and effects as well as the corresponding measures: 1. Causes of excessive temperature: solar radiation, heat conduction, shadow coverage, etc. Impact: Reduces the conversion efficiency of the module. Excessive temperature ...

more

Measures to suppress harmonics

May , 11 2024

The fundamental cause of harmonic generation is due to nonlinear loads. When the current flows through the load and does not have a linear relationship with the applied voltage, it forms a non sinusoidal current, resulting in harmonics. The suppression of harmonics in the power system is to reduce or eliminate the harmonic current injected into the system, in order to control the harmonic voltage ...

more