Tesla uses thousands of small “18650” format Li-Ion cells in their cars. The batteries do have to be slightly modified in order to optimized them for cars, but those changes are significantly cheaper than designing a large, unique, battery. Using commercially available batteries saves Tesla money in design, development, and testing. Instead of large, specially designed batteries to power their cars they use lots of regular Li-Ion batteries. Those pressures led Tesla to an unorthodox battery solution for their products. They also have to compete with the prices of traditional cars, meaning they’re trying to save every penny during production. Tesla and the 18650Īs an EV company Tesla is heavily invested in battery technology. The 18650 is a very common battery form factor. Smaller, lighter, battery packs will help us move into the autonomous age of vehicles. That means you can get the same storage capacity for around a 3rd of the weight. Li-Ion cells have over 3 times the gravimetric energy density of lead acid cells. Adding another 10 pounds of battery is not an option. Some ADAS systems come with so much wiring that they’re taking up all available space inside the car and weighing it down. The main reason we can’t increase the size of lead acid batteries in cars is a lack of physical space. Cars are going to need more energy storage and they’ll need advanced batteries like the ones Telsa is developing to get it. Li-Ion batteries on the other hand, have not. If you want more storage you’ll need a larger battery. Lead acid batteries have reached their capacity limit. However, no matter how low power these chips are, they will still need quite a bit of juice. Some companies, like Nvidia, are now targeting this low power market and are making integrated circuits (ICs) for the future of driving. One of the main hurdles that ADAS enabled cars have to overcome is power hungry electronic sensors and processors. However, as vehicles become increasingly electrified with chips and sensors they’ll need more electrical storage and that storage will need to use less physical space. They power your car’s electronic systems, but as long as your battery isn’t dead, who cares how it works. In traditional cars, batteries are a bit less complicated and have been considered less important. Not only do their storage rates matter for vehicle range, but their discharge rates govern acceleration and their volatility affects driving safety. Obviously, batteries are important for electric vehicles. This approach to battery tech will pave the way for smarter cars, regardless of whether they are gas or electric. Recently, they have developed a new Li-Ion battery with a different form factor for their cars in the future. Tesla has been using a normal kind of Lithium Ion (Li-Ion) battery in their cars for years now, but even how they use that battery is novel. #Tesla car battery overview portableThis is why Tesla’s innovation in the portable energy department is so important. Even as fuel based cars become more electrified they will need batteries with high energy densities at a reasonable price. #Tesla car battery overview driverThey are also critical for gasoline powered cars with advanced driver assistance systems (ADAS). Batteries inform the design of many embedded systems, but none more than the electric vehicle (EV). I, personally, think the the Internet of Things boom and the recent rise in machine learning technology comes from a different sources, batteries. What do you think has spurred the boom in consumer electronics? Maybe it’s faster processors the size of a stamp or low power wide area networks.
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