from chemistry to pack
The BYD battery self heating system in the Denza Z9 GT means that even in cold conditions it just adds 3 minutes to the charge time. Not quite as the quote is from 20% SOC in -30°C conditions and not the 10% SOC starting point when the battery is warm. In the BYD European patent … Read more
We have initial data for the 2026 BYD Short Blade 2.0 cell based on a shared [1] teardown of a 75.6kWh pack. Specifications Charge Rate – supports a massive 8C peak charge rate. Under optimal conditions with the right charger, this rate allows the short blade battery to charge from 0% to 80% (and potentially … Read more
BYD have stated “Oil and electricity at the same speed”, by this I read: Charging at the Speed of a Petrol Pump. What does that mean in terms of power? A petrol pump delivers 30 to 40 litres/minute energy content of petrol = 9700 Wh/litre 9700 x 40 = 388,000 Wh/minute = 23.28 MWh/hour = … Read more
Not many details around the BYD Shark PHEV, but worth sharing what we know. The image shows a rectangular battery pack, typical of the BYD Blade design. This uniform shape keeps the cost low, but will challenge the packaging of the driveline and in particular propshafts. A north-south configured 1.5-litre turbocharged four-cylinder petrol engine and … Read more
The 2021 BYD e-Platform 3.0 brought quite a few changes to the battery pack design. Now with more data available it is worth a more detailed look. BYD make a number of claims around the battery in this design: The platform is likely to be updated to 4.0 in 2024. Cell Orientation With the update … Read more
The BYD Blade cell is an overall design philosophy that enables high system level energy density with LFP chemistry. This is enabled by assembling the cells all together at pack level, creating a Cell to Pack design. The BYD blade cell to pack design is interesting as it has been designed by a company that … Read more
The BYD FC4680P cell is a Lithium Iron Phosphate chemistry in the Tesla 4680 cell format. 4680 => 46mm in diameter and 80mm high A small plug in the top is described as an “explosion proof valve”. Independently measured values shown in bold Key features of BYD FC4680P Dimensions Safety Data Data as shown on … Read more
An initial look at the sodium ion battery pack based on what we know to date, who is about to launch products and how it compares to Lithium Ion. This will need to be extended as more information is released and hence we get a chance to do more calculations. Sodium Ion Chemistry Sodium-ion batteries … Read more
The BYD Blade pack design is the first cell to pack design that encompasses everything this means. Not having a module and the overhead of a module is difficult to achieve. LFP cells make this design easier in some ways and this gives a new lease of life for LFP chemistry. The Tesla with CATL’s … Read more