Dec 10, 2018 Pageview:1028
The decrease of battery capacity is due to internal resistance caused by oxidation, which is the main reason for the decrease of battery capacity. After that, the resistance of the electrolytic cell will reach a certain point. Although the battery is fully charged at this point, the battery cannot release the stored power. The aging speed of lithium battery is determined by the temperature and charging state. The following table illustrates the battery capacity under two parameters. Temperature charging° C capacity a year later after a year of capacity ° C capacity a year later after a year of capacity ° C capacity a year later after a year of capacity ° C capacity volume % % 3 months after a year later by the chart shows, the high charge state and temperature accelerated the battery capacity decline.
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For many years under the support and help of friends from all walks of life and the joint efforts of employees, the company has developed into a number of annual sales of nearly ten million yuan of high-tech electronics companies, partners throughout of posts and telecommunications, electric power, petrochemical, industrial and mining enterprises and universities, and other fields, with many manufacturers and system integration company maintained good relations of cooperation. The company in line with the "quality, there is a market; Have, just have progress "production management concept. Pay close attention to the concept of quality production; Integrity is the foundation of our company's reputation, to "find problems immediately do, timely processing to improve" after-sales service attitude; To cooperate with dedication, said to do the work style to meet every customer. After years of experience and practice, our company has won the respect and trust of the society. We will continue to pursue win-win cooperation with friends and partners from all walks of life in the spirit of being realistic, innovative, honest and equal. We will "the quality, the consummation post-sale service, the technology, the lofty prestige" the enterprise spirit and the customer hand in hand will create the glorious tomorrow! As an uninterruptible power supply agent of UPS in the early market, in order to cope with changes in market demand, continuous technological innovation and good quality requirements, our company pays attention to brand and has reached cooperation with many UPS manufacturers.
We sell UPS uninterruptible power brands
UPS battery agent products: battery, soup shallow battery, Germany sunshine battery, battery, battery, special battery, hercules battery, set battery, jinbo battery, shengyang battery, knapp battery, okesong battery battery union battery and other brand battery products. The company consists of engineering department, technical service department, sales and other major departments, has a good technical service and sales team, especially the technical service department of all employees have received technical training, has a wealth of theory and practice. Professional to provide you with safe and reliable UPS uninterrupted power supply solutions, we only do UPS uninterrupted power supply, because the professional so excellent, in addition to UPS uninterrupted power supply we have nothing, only UPS power supply we can do anything... Welcome to consult our engineers for technical problems and provide us with the quotation of UPS uninterrupted power supply
For example, the positive electrode of lithium iron phosphate battery itself has poor electrical conductivity, and it is easy to generate polarization at low temperature, thus the battery capacity; Due to the influence of low temperature, lithium graphite embedded speed is easy to precipitate out on the negative electrode surface. If the battery is put into use due to insufficient shelving time after charging, it cannot be completely embedded into the graphite again. Some negative electrode surfaces may form lithium dendrites, which may affect the safety of the battery. At low temperature, the viscosity of electrolyte will increase, and the migration impedance of lithium ion will also increase. In addition, in the production process of lithium iron phosphate battery, the adhesive is also a very key factor, low temperature on the performance of the adhesive will have a greater impact.
Sometimes, the time from the battery factory to the user's hand is very long, which can be as short as six months or as long as six months. At this time, because the battery electrode material will be passivated, the manufacturer suggests that the battery used for the first time should be fully charged and discharged, so that the passivated electrode material can reach a large capacity []. The nickel metal hydride battery of the first three times does not need to be charged for hours. Because it needs replenishment and trickling charge, it may take about an hour to reach the full state, but it also does not need an hour. The constant current and constant voltage charging characteristics of lithium ion battery also determine that its deep charging time does not need an hour []. Are rechargeable batteries stateful nickel-based batteries are stateful and typically reach their full capacity between cycles.
Still have a kind of high temperature lead battery lead battery, suitable for all the year round temperature above 35 ℃ in the main growing region of high temperature, power outages, poor and remote communication, solar/wind energy storage power station, and many other fields.
Type type analysis of cell types can be classified into three types: external short circuit, internal short circuit and overcharge. The outer part refers to the outer part of the cell, including the short circuit caused by poor insulation design inside the battery pack. When a short circuit occurs outside the cell, and the electronic component fails to cut off the circuit, high heat will be generated inside the cell, causing part of the electrolyte vaporization, which will stretch the battery shell. When the internal temperature of the battery is high to Celsius, the diaphragm paper of good quality will close the pores, and the electrochemical reaction will be terminated or nearly terminated. The current will drop sharply and the temperature will also drop slowly, thus avoiding the occurrence. However, the thin hole closure rate is too low, or the thin hole will not close the diaphragm paper, the battery temperature will continue to rise, more electrolyte vaporization, after the battery shell, and even the battery temperature to the material and.
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