Technology

59135 readers

2487 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

322

New Cobalt-Free Silicon EV Battery Is The Best Thing Ever (cleantechnica.com)

submitted 2 months ago* (last edited 2 months ago) by ArtikBanana@lemmy.dbzer0.com to c/technology@lemmy.world

43 comments fedilink hide all child comments

“This breakthrough development translates into a remarkable improvement in cell-core energy density, reaching 2,000Wh/L in batteries and approximately 1,700Wh/L in full-size EV batteries – more than double the performance of current state-of-the-art technologies,”

“Sienza’s 3D pure silicon anode has demonstrated an average gravimetric capacity of 2,941 mAh/g,” Professor Gharib said. “This means that for every gram of silicon, our batteries can store 2,941 milliampere-hours of electricity, significantly higher than the industry standard for graphite, with a gravimetric capacity of 372 mAh/g.”

Aside from completely avoiding the cobalt issue, Sienza notes that its manufacturing process does not rely on the solvent-based coating systems deployed for producing conventional lithium-ion batteries. Sienza cites one commonly used solvent in particular, N-methyl-pyrrolidone (NMP).

you are viewing a single comment's thread
view the rest of the comments

[–] frezik@midwest.social 7 points 2 months ago

It's also suspicious how they talk about the volumetric efficiency and dance around mass efficiency. Taking up less space is nice, and it can't be completely ignored, but it's not the primary thing EVs need. It's not even that big of a deal for stationary grid storage.