Is Tesla's In-House 4680 Battery a Game-Changer in the Making?

Core Insights - Tesla has achieved a significant milestone in battery innovation, claiming that its in-house production of 4680 battery cells is now more cost-effective than sourcing from external suppliers, making it the lowest cost per kilowatt-hour (kWh) among its supply chain partners [1][3] - This achievement is notable as Tesla is not solely a battery manufacturer, yet it has surpassed dedicated battery producers like Panasonic and LG Energy Solution in cost efficiency while managing multiple business lines [2] - Tesla has scaled its 4680 battery production significantly, reaching the milestone of producing 100 million cells as of last September, with the 4680 cell design offering high energy density and performance benefits [3] Industry Developments - Tesla is constructing its own lithium refinery in the United States, which is expected to further reduce costs and indicates a commitment to vertical integration and lowering EV costs through improved battery technology [4] - Other companies in the EV sector are also focusing on battery technology; BYD Co Ltd has leveraged its battery manufacturing expertise to support its EV business, producing lithium iron phosphate batteries with a vertically integrated production model [5] - General Motors is advancing its battery technology through joint ventures with LG Energy Solution, ensuring stable access to essential battery materials through supply deals for lithium, nickel, and cobalt [6] Tesla's Market Performance - Tesla's shares have declined approximately 42% year to date, compared to a 37.5% decline in the industry [8] - The company trades at a forward price-to-sales ratio of 6.82, which is above the industry average, and currently holds a Value Score of F [10] - The Zacks Consensus Estimate for Tesla's earnings has been trending downward over the past 30 days [12]