Battery Manufactory

Batteries can reach the desired operating voltage when there is a connection of several cells in series; Each of the cells will add its voltage potential to obtain the total voltage required across the terminals. On the other hand, the parallel connection brings about a higher capacity by simply adding the total amp-hour (Ah) of all cells involved. Some battery packs, however, consists of a combination of serial and parallel connections. For laptops, there are generally four 3.6V lithium-ion cells connected in series to achieve the nominal voltage of 14.4V and then two cells connected in parallel to increase the capacity from 2400mAh to 4800mAh. This configuration is known as the 4s2p, which means four cells in series and two cells in parallel. The insulating film between the cells will prevent the conductive metal skin from causing a short circuit. Most of the chemistries used in batteries are suitable for both series and parallel connections. It is however im...

Lithium-ion batteries are, without a doubt all-time best battery. They have made a real change in the realm of battery chemistry. With long-lasting features and powerful voltages, there are very few other technologies to compare. Because of this, market capitalization has risen greatly, with demand rising every day. The world is finding a need for batteries today than ever. More and more portable gadgets are being manufactured that require the use of strong battery power. Think, for instance, of electric vehicles. They would not be able to perform to and beyond expectations without great battery power. EV manufacturing has been on the rise over the last few years, paving the way for more battery technologies. This has led to the birth of different battery manufacturers. Unfortunately, not every lithium-ion battery you find on the market is genuine. There are so many fakes, especially on the internet. You will even find a company that makes covers for fake ba...

Inconsistent lithium battery packs mainly refer to inconsistent parameters of capacity, internal resistance, and open circuit voltage. Inconsistent performance of the cells is formed during the production process. The batteries in the same lithium battery pack are weak and weak, and the acceleration is weak. The degree of dispersion of the parameters between the individual cells increases as the degree of aging increases. Inconsistent battery strings are used together and the following problems occur. Lithium battery packs inconsistency performance 1. Capacity loss, the battery cells constitute a lithium battery pack, the capacity is in line with the barrel principle, and the capacity of the worst battery cell determines the capacity of the entire lithium battery pack. Take two batteries in series for example. One battery has a capacity of C and the other has a capacity of only 0.9C. In series, two batteries pass the same amount of current. When charging, ...

Label: Lithium battery   1 component selection criteria 1.1 Protection IC Selection ●High-end: MM3280H02, Seiko 8261AAGMD, Ricoh R5400N110FA ●Low end: composite IC, etc. ●Special requirements for individual customers 1.2 MOSFET selection ● High-end: Panasonic MTMC8E2A0L; AON3816, Magna, etc. ●Low end: MOS8205, etc. 1.3 resistance, capacitance ● Capacitor: Use TDK, MARUTA capacitor brand, the required material is X5R or X7R, and the capacitor of Y5V material is not used. ●Resistance: Using TDK, Guoju brand, requires better precision material 1.4ID resistance and NTC resistance ●The choice of the two is to configure the resistance value and accuracy according to the customer's requirements. The NTC thermistor needs to determine the B value. The package should be determined according to the space and wiring requirements of the pCM. 1.5 fuse and pTC ● When the customer requests to use, the fuse should be given priority in the 6A/0603 package. ...

Universally recognized as the global leader in battery safety testing, UL helps battery product manufacturers gain fast, unrestricted access to the global market. UL not only tests and certifies batteries, but also contributes to the development and international harmonization of industry safety and performance standards. What is Underwriters Laboratories (UL) ? UL is an independent product safety certification organization which, in conjunction with other organizations and industry experts, publishes consensus-based safety standards.  For lithium batteries, key standards are: UL 1642 (Lithium Batteries) – This standard is used for testing lithium cells.  Battery level tests are covered by UL 2054.  UL2054 (Household and Commercial Batteries) – For lithium batteries, UL 2054 defers all component cell level testing to UL 1642. UL 2580 (Batteries for use in Electric Vehicle What is UL 1642 (Lithium Batteries)? UL 1642 (Lithium Batteries) – This s...

What is the CB Scheme? The IEC System for Conformity Assessment Schemes for Electrotechnical Equipment and Components (IECEE) Certification Body (CB) Scheme is the world’s first international system for the mutual acceptance of product safety test reports and certificates for electrical and electronic equipment, devices and components. Based on the use of internationally-accepted product safety standards, the CB Scheme relies on a global network of CB testing laboratories (CBTLs), who are responsible for testing products to applicable technical standards. Product test results are then submitted to national certification bodies (NCBs) in CB Scheme member countries, who can authorise legal access to CBTL-tested products without additional testing. The CB Scheme is an international program for exchange and acceptance of product safety test results among participating laboratories and certification organizations around the world. The CB Scheme offers manufacturers a s...

IEC 62133-2:2017 is the most well-known standard for exporting lithium-ion battery, including those used in IT Equipment, GPS, wearable products, smartwatch, Bluetooth devices, wireless sensors, tools, laboratory, household and medical equipment. In February 2017, the International Electrotechnical Commission (IEC) officially released the IEC 62133-2:2017, an international safety standard for lithium ion battery products. This standard is mainly for the safety requirements of a single battery and battery packs and portable sealed only cell batteries and battery packs containing alkaline or non-acid electrolytes (including lithium ion polymer batteries, lithium ion(Li-Ion) cells, nickel-hydrogen batteries, nickel-cadmium batteries, etc.). The second edition will have some significant changes related to Lithium-ion Batteries. Battery Safety Standard Update: Major changes were made to IEC 62133 The IEC 62133 family of standards has enabled international harmoni...