Porsche Taycan Battery uses Silicon-doped Anode similarly to Tesla

Silicon Anode is one of the big announcements of the Tesla Battery Day 🔋

Compared to graphite, Silicon is denser and gets a much higher (10 times) capacity. The problem is that Silicon ‘swells’ 🤯 as it takes on Lithium ions and repeated expansions ⬛️ and contractions ▪️ (as the cell 🔋 is charged ⚡️and discharged 🔌) causes the Anode to fracture 🤕 and to degrade which limits for the moment the percentage of Silicon within the Anode

Although most of Battery manufacturers 🔋 are working on Silicon Anode, very few have already introduced small percentages of Si as an additive 🧂 in their graphite Anodes. But in 2016, Elon Musk revealed that Tesla Batteries 🔋 from Panasonic were already using Silicon-doped Anode, increasing Tesla range by up to 6%

Tesla was the only known-OEM using Silicon-boosted Anode but very recently, A2Mac1 identified Silicon additive in the Porsche Taycan Battery cells

The Porsche Taycan Battery cells 🧪 are supplied by LG Chem, as in the AUDI e-tron and the Mercedes EQC. But if you compare the 3 German OEMs 🇩🇪, the Taycan Battery is much more performant 💪🏻:  all these Batteries🔋 have all about the same size 📦 and get similar power density, but the Taycan Battery has a higher energy density ⚡️, which could be explained by Silicon boosting ⏫

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