modules

A Field-Validated Framework That Exposes the Limits of SoH

Yanti repair fieldwork

Yanti Innovative Electromotive Solutions Pvt Ltd Abstract A module at 78% state-of-health (SoH) is scrapped as end-of-life; after reconditioning, it powers a stationary storage for three more years. Another at 82% SoH fails weeks into revival. Conventional metrics cannot explain the difference. Field analysis of >1,000 EV modules across platforms reveals that recoverability the probability … Read more

2024 Audi Q6 SUV e-tron quattro

2024 Energy = 94.9 kWhusable = 100 kWhtotal SoC Window = 0.949 Nominal Voltage = 662 V Voltage Range = Max V = Min V Nominal Capacity = 151.1 Ah Pack DCIR (est from cells) = O10s = O30s Main Fuse Rating = A Power = 315 kW10s = A10s = kWcont = Acont Regen Power = 220 kW10s Charging = 270 kWfast = minutes (0-100% SoC) = minutes (5-80% SoC) = 21 minutes (10-80% SoC) = minutes (10-70% SoC) = minutes (20-80% SoC) = minutes (30-80% SoC) Warranty = 8 Years = 100000 Mileage Pack Mass = 590 kg Cell Mass = kg Pack-Cells = kg Cell to Pack Ratio = % Pack Dimensions = mm (x) = mm (y) = mm (z) Pack Volume = litres Enclosure Materials = IP Rating = Cooling = litres/minute = kW = liquid Type Gravimetric Energy Density = 169.5 Wh/kg Volumetric Energy Density = Wh/litre Gravimetric Power Density = W10s/kg = Wcont/kg discharge = Wcont/kg charge Volumetric Power Density = W10s/litre = Wcont/litre Round Trip Efficiency = AC = DC Modules = 12 Number = 15 Cells/module = Mass = Number of Temperature Sensors Cell = CATL Make = Model = NMC811 Chemistry = Prismatic Format = Size = 151.1 Capacity Ah = 3.67777777777778 Nom V = 555.712222222222 Energy Wh = mass kg = Wh/kg = DCIR [10s 50% 25 C) O = DCIR [30s 50% 25 C) O Configuration = 1 # packs = 180 s = 1 p = 180 Total Cells

The 2024 Audi Q6 SUV e-tron quattro has a 100kWh battery pack that uses large CATL prismatic cells. A rectangular flat pack design. The first of Audi’s production vehicles based on the Premium Platform Electric (PPE) architecture. The Audi video shows that the pack has a fire protection layer applied over the top of the … Read more

Benchmarking Modules

Pouch cell module as used by Audi

What do you need to know when benchmarking modules? This is all part of our thought process so that we can start to pull together the data you need. Hence, a high level list: This post has been built based on the support and sponsorship from: Thermo Fisher Scientific, Eatron Technologies, About:Energy and Quarto Technical Services. What have we missed? … Read more

Battery Assembly Times

Peugeot e208 battery

A look at battery assembly times based on available reports and data. Cell to Module The Peugeot e208 pack is rather complex looking, but the module is a quite standard 12 prismatic cells in an aluminium box. Module to Pack The Peugeot e208 battery consists of 18 modules assembled into what is a complex battery … Read more

Pack Generations

battery pack generations

When we look at automotive battery pack design there have been a number of pack generations. The general theme is to simplify and hence reduce the cost. Initially we saw packs built from small modules of around 12 cells. The next step in pack generations is possibly going to be a cell to vehicle design. … Read more