QS Battery Safety Report

Safety is one of the most critical performance capabilities of any battery – and we believe QuantumScape’s solid-state lithium-metal battery technology has the potential to simultaneously offer an improved safety profile as well as enable better energy, power, fast-charging, and cycle life than existing high-energy EV batteries.

In this video, QuantumScape Senior Director of Cell Design & Manufacturing Daniel Braithwaite and Senior Manager of Battery Safety Giovanni Flores share safety testing results from 24-layer prototype cells based on our Alpha-2 cell design.

00:00 — Intro
01:59 — Nail Penetration Test
04:24 — External Short Circuit Test
05:37 — Thermal Stability Test
08:13 — Summary of Prototype Safety Testing

To learn more, read our blogs on battery safety:

[kbghjvt]

I have been “all in” on QS since shortly after going Public. This Battery will completely revolutionize the Battery market! People will be shocked in a couple of years what potential this Battery actually has and wish they’d bought stock. Great job QS!

[tommckinney]

Thanks for being transparent on your testing and data.

[DylanFkinGuenther]

Great video the thermal runaway seems so impressive its hard to believe its real. Please continue to put these out

[mightyone]

Keep up the good work the world needs your product.

[HambertHM]

That discharge rate on short circuit is insane! I guess it perfectly illustrates the charge velocity they're capable of.

[chrs]

This is absolutely huge! Amazing work and innovation

[allangraham]

I assume your reference battery was an NCM battery. Be interesting to see the test results of a LFP battery undergoing same tests

[brucejankowitz]

I can't wait till your devices are used everywhere, however I'm a bit confused and need someone to help, towards the end of the video the ceramic separator was referred to as an "electrolyte separator". I was under the impression that there was no electrolyte in your cell. What am I missing?

[yuanmu-s]

congratulations，and hope you can show us the original report of safety testing

[bestarny]

Everything looks perfect, but I know there’s no such thing as perfection in the world. Can anyone tell me what the weaknesses of the battery are?

[eocncks]

The battery was safe from electric drills, but the hearts of shareholders were charred.

[eocncks]

QS is digging into the hearts of shareholders with electric drills.

[ys]

There's still a long way to go, but all the board members are selling their shares.

[sebastiangruenfeld]

I don't swing that way but the guy on the left has beautiful eyes

[FunkCatherine-lg]

Thompson Kenneth Martin Gary Hall Mark

[ulasonder]

Jagdeep was holding on till recent, he was the only one I thought still genuinely believed in his company, which made me believe there was still hope, but he started to sell shares as well... I watch SEC Form 4 report way more often than anything else. Your lack of transparency over manufacturing progress is what's holding you back.

[gandyo]

This company is going amazing things, including diluting loyal shareholders holdings by continuing to issue more shares.

[carey]

Then as employees, show us you believe & buy 100, 000 shares!

[ys]

They're selling shares because they don't think the company's value is going to go up.