Summary Reader Response Draft 1

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The article ”Everything You Need To Know About Tesla’s New 4680 Battery Cell”, written by (Field, 2020), talks about how the new battery is a game changer. The new improvements and features that Tesla has made to its battery has lead to the Tesla’s 4680 tabless battery. There are many different kinds of battery out there and the 4680 is a specific type of lithium-ion(Li-I) made by Tesla. Li-I battery is a rechargeable battery being widely used in many areas like electronics, electric vehicles and energy storage systems. However the 4680 is made specifically for the use in Tesla’s electric vehicles. The 4680 is a total redesign of the battery compared to its previous model 2170.  According to Williams (2020) the 4680 are being currently used in Tesla models Y and there is a plan to include them in other Tesla models cars replacing previous Tesla batteries like the 2170 and 18650 and even including the Cybertruck.


The first improvement that the 4680 has is that it has more efficient battery performance. According to the webpage (Benefits after model Y, n.d.) the biggest difference between the 4680 and its counterpart 2170 is that it can generate more energy with lesser materials. There are many advantages the 4680 has over the 2170. The 4680 can charge faster compared to the 2170 because of the use of all pole tabs as it allows the electrons to move more easily and with less resistance inside the battery. 4680 is also 5.5 times bigger and made to store 5 times the energy compared to the 2170. Due to the size and power of the 4680, it also has a driving range of 16 percent more compared to its counterpart. 


Another improvement for the 4680 is the improved manufacturing process and reduced cost. According to the webpage (manufacturing techniques, 2022) the main reason for this is because of the new design and science of the battery. During the manufacturing of the 2170, the production needs to be continuously started and stopped because it has a tab. However when manufacturing 4680, it can reach a very high speed without the need to be stopped as the 4680 is tabless and this allows the production process to be fast and less likely for there to be any defects with the battery. Since the manufacturing process is fast it can produce more batteries in less time. Another reason is because of their new dry coating process. According to Kazarian (2023) , the old method of coating the electrode compared to Tesla's new method of dry coating is more efficient and fast.  The old method involves a wet chemical slurry and drying it before the final assembly of the battery. However since the new method involves dry coating, this eliminates the need for the drying process. The new dry coating process leads to reduced cost, energy usage and manpower.


Another improvement to the 4680 is its thermal dissipation. According to Field, Tesla was able to manage the heat dissipations effectively because of its new tabless design. According to (Bower, 2020) the tabless design allowed for decreased resistance inside the battery. This is possible because at each point of the 4680, there are cooling pads made of electrons which allow for heat to be pulled out from the centre of the battery to either ends of the battery. Thus it helps in the thermal dissipation of the battery. According to Field, although the 4680 is bigger it has reached similar heat dissipation compared to smaller batteries. 


Every new technology out there, there will always be some limitation and disadvantage to it. Unfortunately this is the same for the 4680. The drawback of the 4680 was that it is new. According to the webpage (Advantages and Disadvantages of Tesla 4680 Battery, 2023) 4680 is still in its early stages and needs to be used more as it does not have enough reliability and needs to be tested more. Since it's a new technology it is even harder to come up with a production line as the designs are still all too new and it requires new equipment. Due to this, Tesla can have trouble producing a large amount of 4680 batteries.


In conclusion, the 4680 is a superior battery compared to its predecessors like the 2170 battery. It might be the future of the next gen electrical vehicle cars. Even with so many promises this technology is still new and needs time to mature. Only time will tell how great Tesla’s 4680 can be.



 Reference

What Are the Benefits After Model Y Change To Tesla 4680 Battery.(n.d). Ecolithiumbattery. https://www.ecolithiumbattery.com/what-are-benefits-after-model-y-change-to-tesla-4680-battery/

Tesla 4680 battery manufacturing techniques & market report. (2022, October 22). Tycorun Energy. https://www.takomabattery.com/tesla-4680-battery/#4680-battery-cell-manufacturing-process

Kazarian, K. ( 2023, July 10). Dry Battery Electrode Process Minimizes Footprint, Energy Consumption. (2023, July 13). Powder Bulk Solids. https://www.powderbulksolids.com/drying-thermal-solids-processing/dry-battery-electrode-process-minimizes-footprint-energy

Bower, G. (2020, September 30). Tesla 4680 Cell: Thermal Analysis Suggests Unique Cooling System Design. InsideEVs. https://insideevs.com/news/446572/tesla-4680-cell-thermal-analysis-cooling-design/

Main Features and Advantages and Disadvantages of Tesla 4680 Battery. (2023, June 21). Topwell. https://es.topwellpower.com/info-detail/main-features-and-advantages-and-disadvantages-of-tesla-4680-battery

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