Why Is Everyone Trying to Build a Solid-State Battery?

Re:Why Is Everyone Trying to Build a Solid-State Battery? by hannasanarion on Thursday July 30, 2026 @10:44AM (#49110795)

For disposable applications like that, aren't there single-use chemistries that are better already? I'm thinking by analogy to things like:

- WW2 proximity fuzes that had batteries where the electrolyte was in a vial that got smashed by the G-forces of being shot out of a cannon providing power to the radio inside for the 10 seconds it needs to get to the incoming aircraft

- Hearing aid Zinc-Air batteries, that are extremely energy dense because you only have to actually manufacture the anode, the cathode is the entire atmosphere of the Earth

- Missile batteries, which are often Lithium-silicon/Iron Disulfide batteries that borrow some thermal energy from the rocket motor to get a molten salt electrolyte

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Re:Why Is Everyone Trying to Build a Solid-State Battery? by heckintime on Thursday July 30, 2026 @05:20PM (#49115958)

Not all drones are one way

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Re:Why Is Everyone Trying to Build a Solid-State Battery? by NovemberWhiskey on Thursday July 30, 2026 @06:42PM (#49116796)

Even for drones that are reusable: if there’s a substantial performance advantage to using a primary cell then you might just want to do that if you’re relatively price insensitive and have good logistics (say, the US Army). Or if you need to be self-sustaining in non-permissive environments (say, the US Army).

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