from chemistry to pack
In 2019 the median 10-80% charge time for BEV road cars was 39 minutes. In 2026 that median has fallen to 22 minutes. The fastest quoted pack in our database is 6.5 minutes and that is the 3rd generation of CATL Shenxing pack. Over this timeframe there has been a steady increase in the peak … Read more
Every solid-state battery announcement over the past year or so has come with a headline charge time: 15 minutes, 12 minutes, sometimes under 10. Feels like a limbo dance at a bar, getting lower and lower as we all get drunk on the lemonade. Lined up next to each other the claims look almost interchangeable, … Read more
Every push toward faster charging runs into the same wall eventually: it isn’t the wire, the electrode particles, or even the reaction kinetics that gives out first. It’s the electrolyte itself struggling to move enough lithium salt to where it’s needed, fast enough. That transport bottleneck has a name: concentration polarization. It’s one of the … Read more
A pack charging time estimator built using the Electric Vehicle packs in the Battery Pack Database. EV Pack Charging Time Calculator EV Pack Charging Time Calculator Estimates DC fast-charge time from pack size, chemistry, peak charging power, and a SoC window, then layers on a simplified thermal model — starting pack temperature, pack mass, and … Read more
What “Generation” Actually Means in Lithium Iron Phosphate Lithium iron phosphate (LFP) has spent the last five years closing the energy density gap with nickel-based chemistries, and almost none of that progress has come from changing the underlying LiFePO₄ crystal. Instead, the industry has been fighting a materials-processing battle centred on one metric: compaction density. … 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
The 2022 Kia EV6 is an interesting vehicle, perhaps mostly because of the specifications around the battery pack. Specifications that have been achieved with some small steps in design. This platform is shared with the Hyundai Ioniq 5. The 2021 Hyundai Ioniq 5 pack had 30 modules and a total of 72.6kWh. In this design … Read more
The 2024 Chevrolet Silverado EV uses the Ultium battery pack design. This pack goes across a number of the vehicles in GM’s stable and we covered an overview of the design 18 months ago. The basic premise is to use one pouch cell design within different module configurations to cover a wide range of pack … Read more
The Zeekr 007 LFP battery is also described as the “Golden Brick Battery” pack. It appears the gold colour comes from a wrap that is used to electrically isolate the pack. That sounds very much like Kapton tape. Specifications Metrics These numbers are based on images, a few data points and a few assumptions. Please … Read more
Hot Swap vs Fast Charge: Swapping battery packs has come and gone, only to return in force with NIO having swapped 20 million packs (up to May 2023). However, how does this compare to fast charging? Battery Swap For this comparison we are using the 100kWh NIO ES6 as the default. Fast Charging For fast … Read more