Depth analysis of the electric car full of exactly how long

Source: 2020 - 03 - 23 'hits: time of power battery cycle life of 20 years when it comes to electric cars, with no understanding of electric consumer have such doubt: electric cars and cell phones, how can not replace the battery used for years? In fact, the reality is not the case, let alone how comparability, mobile phone and electric from the characteristics of power batteries and manufacturer's quality assurance policy, your worry is unnecessary. This content from the above two points, the in-depth analysis of how long the life of the electric car? Power battery cycle life of up to 20 years before that, let's look at the current main variety of batteries used in the new energy automobile market. In the new energy automobile market, the electric car battery roughly two kinds, namely the ternary lithium battery and lithium iron phosphate batteries. Among them, the lithium iron phosphate battery with high temperature resistance, strong security and stability, affordable, and the advantages of good cycle performance. Channel and ternary lithium battery voltage is very high, the same volume or weight of the ternary lithium battery is greater than the energy, greater than power. In addition, the ternary lithium battery charging in large capacity and resistance to low temperature has great advantage. Over the past few years, the domestic application of new energy battery pack is mostly iron phosphate lithium batteries, and affected by the latest subsidy policy in 2018, and earlier this year has also changed the way of thinking, the entire series model gradually transition to a ternary lithium batteries. The ternary lithium batteries in the battery pack features have been very good development, and the history of the battery itself is much longer than we thought. Government regulation: power battery key parts such as guarantee of not less than eight years or 120000 kilometers in addition to their own ways, and look at the government and the new energy automobile manufacturers to provide quality assurance services. In 2015 Beijing respects the ac 'Beijing demonstration application of new energy automobile production enterprises and products for the record management regulations, Revised in 2015) , now make the following adjustment: to provide no less than three years or 120000 kilometers of vehicle quality assurance services, for power battery, motor, controller vehicles such as key components to provide no less than eight years or 120000 kilometers of the warranty service, always perform the warranty requirements today. Cycle life of 20 years part of power battery car battery lifetime warranty, attenuation of 20% replacement service in addition to government mandated by the quality guarantee period, in order to increase the product competitiveness, eliminate the owner of the question, a lot of new energy automobile enterprises have their own 'features' service policy: the mainstream of the new energy automobile company promises for eight years, 120000/150000 km warranty ( Jianghuai iEV 6 e upgrade to provide 8 years quality assurance / 300000 km) The service. In addition to the warranty period, attenuation, the battery manufacturer also gives a threshold of 20%, if attenuation more than this value, the warranty period will have corresponding change of service. As we all know, the battery of attenuation is directly related to the owner of daily experience. Power battery cycle life of 20 years of dealing with the battery pack attenuation cycle, timely monitoring of attenuation values inevitably, the electric car battery pack will show signs of aging, so it is important to correctly observe this aging. For example, in the first year of electric cars, attenuation is very big, usually at around 8%; Then in the next two to three years dropped 4%; In the 5 - During the six years of continuous use, attenuation gradually slow, usually only 1%. In the early stages of an electric car, it is important to view the process right, don't worry too much about. It is important to note that when there is obvious attenuation batteries, can immediately confirm if during the warranty period, if the measured attenuation values within the normal range. If attenuation of more than 20% during the warranty period, you can apply to the factory for free replacement battery. If the warranty period shall not exceed 20%, is a normal phenomenon.