Accord power is the lead-acid battery research and development unit, for lead-acid battery Accord power technology research and development production, with more than 20 years of research and development production history, we know that lead-acid battery, is a kind of secondary battery, but also a kind of rechargeable batteries or rechargeable batteries, is an important electrochemical energy storage device. It uses metallic lead as the negative material, lead dioxide or lead oxide as the positive material, and sulfuric acid as the electrolyte. The voltage of lead-acid battery is usually two volts, so it is also commonly known as "electric battery".
The working principle of lead-acid batteries is based on the chemical reaction between the positive and negative active materials and the electrolyte. During the discharge process, the positive and negative active substances react with sulfuric acid to produce lead sulfate and release electrical energy. And in the charging process, lead sulfate will be decomposed and reduced to sulfuric acid, lead and lead dioxide, to realize the battery recharge.
Accord power is located in the world natural cultural heritage scenic area of Mount Huangshan's southern gate - Shexian County Recycling Economy Park, the company's factory is adjacent to the highway, high-speed rail, air, the transportation is convenient. The factory covers an area of more than 35,000 square meters, built in line with the lead storage battery industry norms of modern plants and production lines, is a collection of scientific research, production, sales, service in one of the specialized production of lead-acid batteries in science and technology-based enterprises. There are more than 140 employees, including 36 professional and technical personnel. The lead-acid batteries produced by the manufacturer have the advantages of good safety sealing, no free acid, simple and convenient maintenance in the later stage, and long service life. It is widely used in many fields such as automobile starting, electric power system, electric bicycle, communication equipment, industrial equipment, emergency lighting and solar energy storage, etc., providing stable and reliable electric power support for these equipments.
The history of lead-acid batteries can be traced back to the middle of the 19th century, and its development can be roughly divided into the following stages:
1, early R & D stage (1859-1881): In 1859, the French scientist Gravier (Gaston Planté) invented the lead-acid battery, which is the first rechargeable battery. It used lead plates as the positive and negative stages, separated by rubber, and sulfuric acid as the electrolyte, successfully realizing the interconversion between electrical energy and chemical energy. However, the initial version of the lead-acid battery had a very low specific energy due to the use of lead plates as electrodes.
2, technical improvement stage (1881 - 1950s): In 1881, the British physicist Ford (Camille Fauré) used the paste lead oxide technology, Pb3O4, distilled water and sulfuric acid made of lead paste coated on the surface of the lead plate, which substantially improved the specific energy of lead-acid batteries. In addition, the British Sellon (Sellon) invented a lead-antimony alloy plate grid, this grid and Fur powder coating method combined, the so-called paste-coated pole plate, this production method is simple and feasible, greatly facilitating the production.
3, space exploration to promote the stage (1950s -70s): the 1950s, the United States Bell Labs began to study the application of lead-acid batteries in space exploration, which promoted the technical progress of lead-acid batteries. By the 1970s, Japan, Germany and other countries began to invest heavily in the research and development of lead-acid batteries, and made a series of technological breakthroughs.
4, environmental protection and renewable energy application stage (21st century to the present): with the world's attention to environmental protection and renewable energy, lead-acid batteries are more and more widely used in solar energy, wind energy and other fields. At the same time, the lead-acid battery electrode materials, electrolyte and other aspects of technical progress, such as enhanced lead-acid batteries, gel electrolyte lead-acid batteries, identification batteries and other new types of lead-acid batteries continue to be developed.
During the research and development of lead-acid batteries, newer test methods and instruments have been gradually introduced to study lead-acid batteries, such as SEM, TEM and DTA. During the 20 years from 1950 to 1970, the research on the basic theory of lead-acid batteries has made a significant leap, and its research focus has been shifted from thermodynamics to electrode process kinetics. In addition, developed countries have also invested a lot of manpower and material resources to develop sealed and maintenance-free lead-acid batteries, using low antimony and antimony-free Pb-Ca alloy to make the plate grid, in order to reduce water loss and self-discharge in the battery, so as to make lead-acid batteries in the process of use to achieve the requirements of low-maintenance and maintenance-free.
In addition to lead-acid battery products, Accord power also has power batteries, lithium batteries, lead-carbon batteries, energy storage batteries, marine batteries and ancillary products, etc. Adhering to the "win the market with integrity, and create value with customers" business philosophy, the implementation of "IS09001 quality management Management", "IS014001 Environmental Management" and "ISO45001 Occupational Health Management" as the core of the management system, in line with the "quality first, customer satisfaction Based on the tenet of "Quality First, Customer Satisfaction", we sincerely cooperate with new and old customers, devote ourselves to the development of storage battery industry, and build our company into a green energy production base with large scale, automation, environmental protection and healthy staff. Lead-acid batteries play an important role in many fields due to their excellent performance and wide range of applications. Firstly, in the automobile field, lead-acid batteries are important equipment for starting and power supply of automobiles, providing the electric energy needed for starting and running. Secondly, in the electric power system, lead-acid batteries are used as peak shifting, frequency shifting and standby power to ensure the stable supply of electric power. In addition, lead-acid batteries are also widely used in electric bicycles, communication base stations, wireless TV relay and other equipment to provide stable power support. In the field of industrial equipment, such as forklifts, power tools, etc. also often use lead-acid batteries as their power source. At the same time, lead-acid batteries can also be used as a solar power generation system of energy storage equipment, storage of solar power generation process generates electricity. In short, lead-acid batteries play an indispensable and important role in important areas of the national economy.
