Top battery manufacturers such as Tesla and LG Energy are racing to scale up 4680 cells, but all face production and innovation challenges.
The electric vehicle (EV) industry is undergoing a transformative shift driven by the development and adoption of advanced battery technologies. Among these innovations, Tesla’s 4680 battery cell is a significant leap forward, offering many advantages over the traditional 2170 battery cell.
Advantages of the 4680 Cell The 4680 cell represents a significant improvement over the 2170 cell, primarily due to its larger diameter of 46mm and height of 80mm compared to the 2170’s 21mm and 70mm. This increase in size allows for a larger volume of active material, resulting in higher energy density. As a result, the 4680 cell can store more energy in the same or smaller space, enabling longer driving range and potentially lower cost per kilowatt-hour (kWh), which enhances the competitiveness of electric vehicles (EVs) with traditional internal combustion engine vehicles. In addition, the 4680 battery uses a tab-free electrode design that reduces resistance and improves heat dissipation, thus solving the thermal management challenges of the 2170 battery. This innovation improves battery performance and extends its service life by better managing heat and reducing the risk of thermal runaway. Another advantage of the 4680 battery is cost-effectiveness. Tesla’s use of dry electrode coating technology eliminates the need for solvents, reduces material costs, and minimizes environmental impact. As production scales up, these efficiencies are expected to reduce the cost per kilowatt-hour, making electric vehicles more affordable than those using 2170 batteries. In addition, the larger size and improved design of the 4680 battery supports higher discharge rates, enhancing acceleration and power output. This makes them particularly suitable for high-performance electric vehicles, while 2170 batteries, despite their capabilities, cannot provide the same level of performance enhancement.
The competitive landscape of the advantages of 4680 batteries in terms of driving range, cost, and investment. Compared with traditional 2170 batteries, 4680 batteries have superior energy density, performance, and cost-effectiveness. As a result, major players in the battery industry are racing to adopt and expand the production of 4680 to gain market leadership. Tesla is at the forefront of this race, and its Gigafactory in Texas (Giga Texas) has played a key role in expanding the production of 4680 batteries, despite rumors that Tesla will abandon the production of 4680 batteries. During Tesla’s first-quarter earnings call, the company highlighted the significant progress it has made in producing 4680 batteries. Lars Moravy, vice president of vehicle engineering at Tesla, said that Cybertruck production has increased significantly to 1,000 vehicles per week. LG Energy Solution has also made significant progress in 4680 battery technology. The company plans to supply these batteries to Tesla and other customers. LG Energy Solution said in its second-quarter earnings call: “The company will secure competitive advantages in products and future technologies. It will first build a differentiated product portfolio by launching 4680 cells and expanding production of ESS LFP cells. At the same time, the company will accelerate the development of future battery technologies by establishing a dry electrode production pilot line at its plant in Ochang, South Korea.
Samsung SDI is another key player, planning to start mass production of 4680 cells next year, earlier than the original 2026 plan. “Thanks to the 46 series battery, the company has gained a new customer for micro-mobility applications, and mass production is scheduled to start about a year earlier than originally planned, around early 2025,” the company said. In cylindrical batteries, the company plans to expand business opportunities in market segments such as power tools, outdoor power equipment (OPE) and special vehicles by leveraging differentiated products with long life and fast charging capabilities. The focus of the 46 series battery will be on preparing for mass production and acquiring new projects.
Challenges of Scaling Up 4680 Cell Production
Scaling up the production of 4680 includes technical barriers and significant investment in manufacturing infrastructure. The industry is still working to overcome issues related to high production costs, yield rates, and the complexity of integrating new technologies into existing production lines. In addition, achieving consistent quality and performance at scale remains a key challenge for all manufacturers. The competitive landscape for 4680 batteries is marked by aggressive efforts by Tesla, LG Energy, Samsung SDI, SK On, and Panasonic to lead the market. While these companies are making significant progress, they face significant challenges in scaling up production and overcoming technology and cost-related barriers. Successfully addressing these challenges will determine which company will dominate the 4680 battery market.
