Chevy Volt is a hybrid, so it has a back-up engine. Therefore, the pack only needed a short "electric only' range. As a contrast, the Tesla model-S battery pack may be capable of 300+ miles, but...the typical drive is still less than 60 miles between charges.
However, the Volt pack still had to provide full performance, even though it was fairly small. This means the Chevy Volt has very high C-rate batteries, and they are very useful for an electric bike. The Zero motorcycle also has similar batteries.
"Salvaged EV cells index, Leaf, Volt, Tesla, etc"
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