Solid State Batteries

Power System
1

Compay says they are in production HMMmmmmm This would go a long way to
a lightweight electric with decent flytime

http://assets.solidenergysystems.com/wp-content/uploads/2017/09/03153232/Hermes_Spec_Sheet.pdf

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http://www.solidenergysystems.com/hermes/

Manufacturing 5,000 cells per month? Doesnā€™t seem industrial scale yet.

No prices listedā€¦ most likely very high now. But we should inquire for a group buy just to get some info.

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Our current Bonka packs are:
22 AH
6S1P
25C
1.2 L
6 lbs

The Hermes cells are rated at 2C so to get the same C rating as a single Bonka pack we would need 13 cells in parallel and 6 in series which would be 78 cells in a pack. So a Hermes pack would look like this:
39 AH
6S13P
26C
1.2 L
5 lbs (plus connections and packaging to make the pack)

Based on that C rating and my experience with Bonka packs I would want to use four packs which would be 312 Hermes cells. Itā€™s new technology so the cost per cell is probably quite pricey multiplied by 312 cells.

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Has anyone contacted them on behalf of the group? (http://www.solidenergysystems.com/contact/)

They say their technology is highly compatible with existing li-ion production, and their product rollout plan is to go for drone / aerial EV first. (see ā€œWhat is your roadmap for entering different markets?ā€ under http://www.solidenergysystems.com/faqs/)

They seem to be interested in people contacting them for samples & design for any interesting / good story applications (from their FAQ). I think OpenPPG makes a brilliant ā€˜storyā€™.

I donā€™t have an OpenPPG unit, and have no prior experience with battery pack design - but if no one else will contact them, Iā€™ll do it to find out their current cost per cell on sample volumes. However Iā€™m sure there is someone better qualified (and better located - Iā€™m in UK)ā€¦

At 434Wh/Kg thatā€™s got to be pretty interesting?

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I sent an email and never got a reply

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Hereā€™s a great video explaining current batteries and an outlook on the future of energy storage. The future looks pretty awesome for electric.

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