What is Tesla 4680 battery?
The Tesla 4680 battery is a new type of lithium-ion battery cell that was announced by Tesla in September 2020. This battery cell has a diameter of 46mm and a length of 80mm, hence its name “4680”. The new battery design represents a significant departure from traditional cylindrical battery cells, and is expected to offer a number of performance and cost benefits compared to existing battery technologies.
In this blog post, we will take a closer look at the Tesla 4680 battery, including its key features, benefits, and potential impact on the electric vehicle (EV) industry.
Features of the Tesla 4680 Battery
The Tesla 4680 battery cell is a significant departure from traditional cylindrical battery cells in several ways. Some of its key features include:
- Increased Energy Density: The Tesla 4680 battery is expected to offer a significant increase in energy density compared to existing battery technologies. According to Tesla, the new battery design can offer up to 5 times the energy density of its current batteries, while also reducing the cost per kilowatt-hour (kWh) by up to 56%.
- Structural Integrity: The new battery design includes a structural “tabless” electrode design that replaces the traditional “jelly roll” structure used in cylindrical battery cells. This new design helps to improve the structural integrity of the battery, allowing it to better withstand impact and vibration. It also helps to improve the cooling of the battery, which is essential for preventing overheating and improving battery longevity.
- Simplified Manufacturing: The tabless electrode design of the Tesla 4680 battery allows for simpler and more efficient manufacturing processes. The new design eliminates the need for certain materials and production steps used in traditional cylindrical battery cells, which can help to reduce manufacturing costs and increase production efficiency.
- Compatibility with Tesla’s Manufacturing Processes: The Tesla 4680 battery is designed to be compatible with the company’s existing manufacturing processes, including its automated production lines and Gigafactory facilities. This means that Tesla can more easily scale up production of the new battery cells without having to make significant changes to its existing infrastructure.
Benefits of the Tesla 4680 Battery
The Tesla 4680 battery has the potential to offer a number of benefits compared to existing battery technologies, including:
- Increased Driving Range: The increased energy density of the Tesla 4680 battery means that it can store more energy per unit of weight and volume, which can translate into longer driving ranges for electric vehicles. This is particularly important for mass-market EV adoption, as consumers often cite range anxiety as a key concern when considering an EV purchase.
- Lower Costs: The reduced cost per kWh of the Tesla 4680 battery could help to make electric vehicles more affordable and accessible to a wider range of consumers. It could also help to accelerate the transition to renewable energy sources, as battery storage is a critical component of renewable energy systems.
- Improved Safety: The tabless electrode design of the Tesla 4680 battery improves the structural integrity and cooling of the battery, which can help to improve safety. The new design is also less prone to thermal runaway, which is a key concern with traditional cylindrical battery cells.
- Faster Charging: The Tesla 4680 battery is designed to support faster charging rates, which can help to reduce charging times and improve the convenience of EV ownership. The increased energy density of the battery also means that it can store more energy in a smaller space, which can help to reduce the size and weight of EV batteries.
Potential Impact of the Tesla 4680 Battery
The Tesla 4680 battery has the potential to be a game-changer for the electric vehicle industry. If Tesla is successful in scaling up production of the new battery cells, it could help to accelerate the adoption
of electric vehicles by making them more affordable, convenient, and accessible to a wider range of consumers.
The Tesla 4680 battery could also have a significant impact on the renewable energy industry. As battery storage is a critical component of renewable energy systems, the increased energy density and reduced cost per kWh of the new battery design could help to accelerate the adoption of solar and wind power, which could in turn help to reduce greenhouse gas emissions and mitigate climate change.
Furthermore, the simplified manufacturing processes and compatibility with Tesla’s existing infrastructure could help to reduce production costs and increase efficiency, which could make Tesla more competitive in the EV market and help to accelerate the company’s growth and profitability.
Overall, the Tesla 4680 battery represents a significant advancement in battery technology that has the potential to transform the electric vehicle and renewable energy industries. While it is still early days for the new battery design, its potential benefits and impact are certainly worth keeping an eye on as the technology continues to develop and evolve.