Semco university – All about the Lithium-Ion Batteries

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The seven charging methods of the electric car that hurt the most in the heat

The seven charging methods of the electric car that hurt the most in the heat

It is especially necessary to pay attention to the heat of charging electric vehicles, improper charging will cause damage to the electric vehicle battery, easy to charge the battery and reduce the service life of the battery. According to battery experts, the following seven charging methods are the most harmful to the battery, and need …

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Lightweight technology for battery pack housing

Lightweight technology for battery pack housing

Introduction The power battery system is the core driving force of electric vehicles. It consists of a battery module, electrical system, thermal management system, battery management system, housing and other parts. The main function of the shell is to load and protect the battery module, which needs to meet mechanical requirements such as strength, stiffness …

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Liquid leakage analysis of soft-pack lithium-ion battery

Liquid leakage analysis of soft-pack lithium-ion battery

Introduction Efficient and reliable energy storage systems are crucial for our modern society. Lithium-ion batteries (LIBs) with excellent performance are widely used in portable electronics and electric vehicles (EVs), but frequent fires and explosions limit their further and more widespread applications. This review summarizes aspects of LIB safety and discusses the related issues, strategies, and testing standards. …

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Failure analysis of lithium batteries

Failure analysis of lithium batteries is a science, and it is not easy to understand:

Introduction to failure analysis of lithium batteries The national standard GB3187-82 defines: “Failure (failure) – the product loses its specified function. For repairable products, it is usually called a failure.” The failure of lithium batteries refers to the deterioration of battery performance due to some specific essential reasons. Or use performance exceptions. The failures of …

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Lithium-ion-battery

Basic knowledge and manufacturing process of lithium-ion batteries

Introduction The production process of lithium-ion batteries is divided into four main processes: pole piece production, battery cell (cell) production, cell activation detection, and battery packaging. The production of pole pieces includes the processes of pulping, coating, rolling, slitting, sheet making, and tab forming. It is the basis of lithium-ion battery manufacturing and has high …

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Which Battery Packaging Form is Better

The packaging form of lithium-ion battery is better?

Introduction Depending on the different package forms, batteries are divided into cylindrical batteries, square batteries, and soft package batteries. Different structures also mean that they have different characteristics. In this article, we will discuss the advantages and disadvantages of the batteries of these three structures. Cylindrical battery: Long-term development and the most mature technology. Advantages …

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Battery vulcanization

Causes & Reconditioning of Battery Vulcanization

Introduction The electric car often has fault two: motor spinning when stopped1 The battery voltage in the state of under-voltage critical will appear when turning and stopping.2 Poor contacts with the battery connector will also occur in this fault.3 The speed control turns the line to break the state and the brake power off switch is faulty. Battery vulcanization …

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