Kamcap

May 06 , 2021 The development of super capacitors has gone through more than 30 years. At present, miniature supercapacitor   are widely used in small electromechanical devices (such as computer memory systems, cameras, audio equipment), while large-size cylindrical supercapacitors are mostly used in the automotive field and new energy fields.   In terms of future development, super capacitors will be an important part of the automotive and new energy industries.   1. The international market situation of super capacitors At present, the super capacitor industry has become one of the hot topics of research in many countries and regions.   Japan, the United States, and Europe have all regarded the supercapacitor project as a national-level key research and development project, and proposed short-term and mid- to long-term development plans. The USMSC plan in the United States, the New Sunshine plan in Japan and the PNGU plan in Europe all include supercapacitors in the development conte

Aug 19 , 2020 When the temperature reaches below minus 10 degrees, the high-current output performance of the vehicle battery is greatly reduced, resulting in the inability to drive the diesel engine to start. As a high-performance energy storage device, supercapacitors can effectively maintain high-current output performance at low temperatures, and the low-temperature startup advantage is very obvious.   Vehicles driven by kam diesel engine , without exception, are powered by a dedicated lead-acid battery to drive the starter motor, thereby driving the diesel engine to compression ignition. During the starting process, the input current power required at the moment of starting the motor is very large. The best working temperature of the commonly used lead-acid batteries is 10 ° C ～ 40 ° C. Under low-temperature conditions, the viscosity of the electrolyte increases. The penetration capacity of the plate decreases and the internal resistance increases, which leads to a significant dec

Nov 18 , 2020 Supercapacitors are electrochemical components developed from the 1970s and 1980s that use polarized electrolytes to store energy. It is different from the traditional chemical power supply. It is a power supply with special performance between traditional capacitors and batteries. It mainly relies on an electric double layer and redox pseudocapacitor charge to store electric energy.   In 1879, Helmholz discovered the properties of double-layer capacitors and proposed the concept of electric double layers, but the use of electric double layers for energy storage is only a matter of recent decades. In 1957, Bcker first proposed that a smaller capacitor can be used as an energy storage device, which has specific energy close to that of a battery. In 1968, Standard Oil Corporation Sohio first proposed a patent for making double-layer capacitors using high-specific surface area carbon materials and transferred the patented technology to NEC. NEC began to produce supercapacito

Oct 14 , 2020 Supercapacitor energy storage means using an electric double-layer structure composed of activated carbon porous electrodes and electrolyte to obtain a large capacitance. Unlike batteries that use chemical reactions, the charging and discharging process of supercapacitors is always a physical process. Short charging time, long service life, good temperature characteristics, energy-saving, and environmental protection. There is nothing too complicated about supercapacitors, that is, capacitor charging, and the rest is a matter of materials. The current research direction is whether it can achieve a small area and a larger capacitance. The development of supercapacitors is very fast. At present, new types of supercapacitors based on graphene materials are very popular.   The supercapacitor is a new type of electrochemical energy storage device between traditional capacitors and batteries. Compared with traditional capacitors, it has a higher energy density, and its electros

Nov 11 , 2020 Solar energy is ideal clean energy for energy conservation and environmental protection, and the energy storage characteristics of the physical process of supercapacitors determine that the solar supercapacitor applications have inherent advantages, which can absorb natural and unstable solar energy to achieve stable voltage output.   Due to the unstable input voltage of solar energy, energy storage devices must be equipped, but the current battery life is short and it has pollution, so charging supercapacitors with solar   are selected as energy storage devices. The power performance of the supercapacitor is much better than that of the battery, the charging speed is fast, there is no over-discharge problem, and the life is long. The charge and discharge can reach hundreds of thousands of times. The energy storage characteristics of the super capacitor's physical process determine its use in solar energy. It has natural advantages in application, absorbing all the el

Dec 23 , 2020 Supercapacitors are mainly composed of electrodes, electrolytes, diaphragms, current collectors, etc., and are a kind of power electronic components that store energy through polarized electrolytes. The precautions for its use are as follows:   1) The super capacitor has a fixed polarity;   2) The super capacitor should be used within its rated voltage and current range;   3) Super capacitors cannot be used in high-frequency charging and discharging circuits;   4) The ambient temperature affects the life of supercapacitors, and the applicable temperature range is -40 ℃ ~70 ℃ ;   5) There is a voltage drop Δ V=IR at the moment of discharge;   6) Do not store in places with a relative humidity greater than 85% or containing toxic gases;   7) It should be stored in an environment where the temperature is -25 ℃ ~40 ℃ and the relative humidity is less than 80%;   8) When using supercapacitors   are used on double-sided circuit boards, be careful not to connect the places where

Oct 28 , 2020 2.7 V 1F supercapacitors   are generally cylindrical supercapacitors with excellent pulse power handling characteristics. The following is a detailed introduction to Kaimei Powers's 2.7 V 1F supercapacitors:   First, features and advantages:   2.7V 1F supercapacitors (also called farad capacitors, gold capacitors, electric double-layer capacitors) store energy through the polarized electrolytes.   1. Standard voltage: 2.7 V 2. Standard capacity: 1F 3. Internal resistance: 400m Ω 4. Size: 8*13.3mm 5. High power density (vs. battery) 6. High energy density (vs. electrolytic capacitor) 7. Green and environmental protection 8. Long-term maintenance-free 9. Low internal resistance 10. Super long life: 200,000 cycles   Second, the typical application:   Hand-cranked flashlights, electric meters, toys, RAM, detonators, clock circuits, home appliance controllers, car recorders, smart meters, vacuum switches, digital cameras, program-controlled switches, motor drives, UPS, bac