Tesla will use the new 21700 lithium battery with better performance!

The battery system is the power source for electric vehicles and is the core system component of the entire industry chain. Taking Tesla ModelS as an example, its battery system (lithium battery + battery management system) costs 56%, while the traditional car engine accounts for only 15%-25%. By 2016, the cost of battery systems has decreased, and the cost structure has also changed. The cost of single cells accounts for 83%, the cost of battery management systems accounts for about 13%, and the remaining 4% is battery cooling system. . Through detailed combing of the Tesla battery system and Tesla's charging facilities, we can have an intuitive and in-depth understanding of Tesla's battery industry chain, and it can also be used as a bypass for other new energy vehicles effect. The current cost of the battery system is one of the most important factors restricting the development of Tesla and other new energy vehicles. Understanding the battery system is equivalent to having the key to understanding the new energy automobile industry.

Through detailed combing of the Tesla battery system and Tesla's charging facilities, we can have an intuitive and in-depth understanding of Tesla's battery industry chain, and it can also be used as a bypass for other new energy vehicles. Effect, the current cost of the battery system is one of the most important factors restricting the development of Tesla and other new energy vehicles. Understanding the battery system is equivalent to having the key to understanding the new energy automobile industry.

In order to be practical, an electric car must consider its endurance after a charge and the convenience of charging. To understand these two points, it is necessary to pay attention to the structure of the battery and the charging speed and device distribution of the charging device. ModelS has introduced 40, 60, 70, 75, 85, 90, 100 kWh with battery power models. For models with 85 kWh and above, there are also performance versions that offer better power performance, such as Perf and Ludicrous version. Different models have the maximum distance and maximum horsepower for each full charge. With the advancement of technology and in order to better meet people's needs, Tesla has successively canceled some ModelS battery models, and the power models that can still be ordered today are 75, 90, 100kWh.

ModelX has introduced 60, 70, 75, 90, 100kWh models, and now only 70 and 100kWh models can be ordered. According to information from Zhongguancun Online, Tesla designed the basic version of the Model3 electric vehicle with a battery pack power of approximately 60 kWh. According to Musk's Twitter and related information, the root Lei Feng network speculated that it may be up to 75kWh. This is mainly due to the smaller wheelbase of the Model3 compared to ModelS and ModelX, and the positioning of the Model3 is also an entry point. According to ElonMusk's July 9th tweet, the first Model3 was rolled out on the same day, and Tesla will hold a delivery ceremony for the first 30 consumers who ordered Model3 on July 28. In addition, Model3 uses a battery different from ModelS and ModelX. At the media briefing held by Tesla Motors Japan on July 15, 2015, Kurt Kelty, director of battery technology at the US head office, announced that Model 3 will use the new 21700 lithium battery, and its energy density will be better than that used for ModelS and ModelX. The 18650 lithium battery is 30% higher.

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