Uploaded March 2025 | Updated September 2026, 2 weeks ago

---

How This Overlooked Battery Might Change Everything. Get an exclusive 15% discount on Saily data plans! Use code UNDECIDED at checkout. Download Saily app or go to saily.com/undecided Multiple research teams have recently made breakthroughs in transforming lithium sulfur batteries from stinky stone to capable battery cathode. Some claim they’ve cracked the code — creating prototypes that charge faster than you can finish this video, and others that last 25,000 cycles. That’s basically a forever battery. What changed? And could lithium sulfur actually overthrow lithium ion as the king of batteries?

Watch How This Battery Runs on Sugar… Seriously youtu.be/R31v28uS_8k?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ

Video script and citations:
https://undecided.tech/how-this-overlooked-battery-might-change-everything/

Get my achieve energy security with solar guide:
undecided.link/solar-guide

Follow-up podcast:
Video version - youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA
Audio version - undecided.link/stilltbd-podcast

Join the Undecided Discord server:
undecided.link/discord

👋 Support Undecided on Patreon!
patreon.com/mattferrell


⚙️ Gear & Products I Like
https://undecided.tech/shop/

Visit my Energysage Portal (US):
Research solar panels, heat pumps, and more to get quotes for free!
undecided.link/energysage

For a curated solar buying experience (Canada)
EnergyPal's free personalized quotes:
undecided.link/energypal


👉 Follow Me
Mastodon
https://mastodon.social/@mattferrell

Mastodon
https://mastodon.social/@mattferrell

Instagram
instagram.com/undecidedtech

Website
https://undecided.tech


Some music provided by Epidemic Sound
undecided.link/epidemic


I may earn a small commission for my endorsement or recommendation to products or services linked above, but I wouldn't put them here if I didn't like them. Your purchase helps support the channel and the videos I produce. Thank you.

Chapters
00:00 - Intro
02:30 - The Not-So-Great Lithium-Sulfur History
03:38 - The Turning Point
05:59 - New Li-Sulfur Breakthroughs
07:02 - The Need for Speed
07:41 - A Graphite Cage Match
08:45 - The "Forever" Battery
09:54 - Remaining Drawbacks & Outlook