Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-04-07 Hits: Popular:AG11 battery
Four major development directions of switching 18650 lithium rechargeable battery technology
Currently, switching power supplies made in China account for 80% of the world market, but we have almost no share in the high-end market. Our country is currently short of energy, and the 18650 lithium rechargeable battery industry is an industry closely related to energy consumption. Therefore, the government and academic groups need to provide guidance on the development direction of 18650 lithium rechargeable battery in several aspects.
1. Rapid development of non-isolated DC/DC technology
In recent years, non-isolated DC/DC technology has developed rapidly. Currently, a set of electronic equipment or electronic systems requires the 18650 lithium rechargeable battery system to provide multiple voltage levels due to different loads. For example, desktop PCs require four voltages: +12V, +5V, +3.3V, -12V and +5V for standby. Motherboards require 2.5V, 1.8V, 1.5V or even 1V, etc. It is impossible to provide so much voltage output in a set of AC/DC, and most low-voltage 18650 lithium rechargeable battery currents are very large, so many non-isolated DC/DCs have been developed, and they can basically be divided into two categories. One type contains power switching components inside, called DC/DC converter. The other type does not contain a power switch and requires an external power MOSFET, which is called a DC/DC controller. According to the circuit function, there are STEP-DOWN to reduce voltage, BOOST to boost voltage, BUCK-BOOST or SEPIC to increase and decrease voltage, and INVERTOR to convert positive pressure into negative pressure. Among them, the one with the most varieties and the fastest development is STEP-DOWN, which reduces blood pressure. According to the size of the output current, it is divided into single-phase, two-phase and multi-phase. The control method is mainly PWM, and a small part is PFM.
In non-isolated DC/DC conversion technology, TI's pre-detection gate drive technology uses digital technology to control synchronous BUCK. The DC/DC conversion efficiency using this technology can reach up to 97%, among which TPS40071 and others are its representative products. In the BOOST boost method, there are also synchronous BOOST products that use MOSFETs instead of diodes. In the low-voltage domain, efficiency increases are substantial, and efforts are being made to further eliminate MOSFET body diode conduction and reverse recovery problems.
2. Switching 18650 lithium rechargeable battery blows the horn of digitalization
At present, in the entire electronic analog circuit system, televisions, audio equipment, photo processing, communications, networks, etc. have gradually realized digitization, and the last bastion without digitization is the 18650 lithium rechargeable battery field. In recent years, the research momentum of digital 18650 lithium rechargeable battery has continued unabated and the results have been increasing. Companies leading the way in power digitization include TI and Microchip. TI not only has advantages in DSP, but also merged with UNITRODE, a professional PWMIC manufacturer. The company has used TMS320C28F10 to make a 48V output high-power power module for communications, in which the PFC and PWM parts are completely digitally controlled. Now, TI has developed a variety of digital PWM control chips. Currently, they are mainly UCD7000 series, UCD8000 series and UCD9000 series, which will become the pathfinders of the next generation of digital power supplies. They generally include both hardware parts and software programming. The hardware part includes the PWM logic part, clock, analog-to-digital conversion of the amplifier loop, digital-to-analog conversion, digital processing, driving, detection and processing of synchronous rectification, etc.
At present, the competition in the 18650 lithium rechargeable battery field is mainly about performance and price, so digital 18650 lithium rechargeable battery still has a long way to go. However, the clarion call for digitalization in the 18650 lithium rechargeable battery field has already sounded.
3. Continuous optimization of primary PWM control IC
Active clamping technology has been enduring for more than ten years. Since the expiration of VICOR's patented technology in 2002, new active clamping control ICs developed by various companies have sprung up, providing users with sufficient choose.
TI, which controlled early active clamp control technology, not only maintained the original UCC3580 series, but also developed the UCC2891-94 with superior performance. It uses a current mode control method and combines high-side clamping and low-side clamping. Two control schemes provide brand-new control techniques. OnSemi first launched the NCP1560 control chip with low voltage (100V) active clamping, and then launched the NCP1280 control chip for high-voltage applications. It not only solved the power requirements of LCDTV plasma TV, but now it is directed towards the next generation of fanless PCs. 18650 lithium rechargeable battery.
Read recommendations:
Seven advantages of lithium iron phosphate battery, know?energy storage battery 48v lithium ion batt
CR1632 battery.Testing of Lithium Battery Protection Board
Last article:3.7v 2200mah 18650 lithium battery
Next article:lithium 3400mah 3.7v 18650 battery
Popular recommendation
Nickel Metal Hydride No. 15 battery wholesaler
2023-03-2236v battery pack lithium ion company
2023-05-0918500 battery wholesaler
2023-03-22602030 battery Manufacturing
2023-03-22connector for energy storage battery wholesale
2023-05-10Coin Battery LR 1130
2022-10-156F22
2022-12-01522749 880MAH 3.7V
2023-06-12LR20
2022-07-01Coin Battery CR 2025
2022-09-27603450 1200mAh 3.7V
2022-07-01Lithium Battery GN12-400
2022-08-1918650 1200mAh 3.7V
2022-06-20LR20
2022-12-07Lithium Battery GN60100
2022-08-19button battery cr1620
2023-06-2512v 18650 battery pack
2023-06-25LR6 battery
2023-06-25LR44 battery
2023-06-25button battery 2025
2023-06-25Application field of lithium iron phosphate battery
2024-03-20Lithium-ion Batteries for Electric Vehicles
2024-12-26lithium 3400mah 3.7v 18650 battery.Blindly disassembling the battery causes the loss of ECU informat
2023-11-23button cell battery cr2025
2024-12-04Lithium-Ion Batteries for Smart Wearable Devices
2024-12-27What common sense do you need to understand when using high-temperature batteries.button cell batter
2023-09-04Lithium -power battery is polluting.602535 battery
2023-05-27Key crafts for battery assembly.lithium battery pack 48v 120ah
2023-03-28Five advantages of lithium iron phosphate battery
2022-11-08Current battery issues.18650 battery rechargeable
2023-08-14