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A comment on 94-year-old Lithium-Ion Battery Inventor Introduces Solid State Battery. Parent comment

Re:94-year-old Lithium-Ion Battery Inventor Introduces Solid... by dreamcompiler on Thursday March 02, 2017 @10:05PM (#13780441)
If it's a true boost converter, it's also going to need an inductor somewhere. If it's really just driving an LED, it could be a charge pump, which uses capacitors instead. But charge pumps probably can't handle the current level that a phone requires.
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Re:94-year-old Lithium-Ion Battery Inventor Introduces Solid... by lightedman on Friday March 03, 2017 @01:50AM (#13781197)
"If it's a true boost converter, it's also going to need an inductor somewhere."

We use resistors as inductors. Plenty of wound resistors in teeny-tiny packages exist, that's how we have metal detectors with credit card-sized boards, the literal bulk of the unit is the frame and coil assembly and board housing + adjustment controls.

Older gas charge pumps can handle it, but they're bulky and they are lossy and generate a lot of heat.

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