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Why do phones still use battery when powered off? (engadget.com)

2026-07-26 | by Christine Persaud | tags: android, blackberry, battery

Tesla's lithium refinery discharges 231,000 gallons of polluted wastewater a day (news.ycombinator.com)

2026-05-19 | by With More Than Years Covering The Automotive Industry | get Tesla Lithium Refinery Water Test Kit → | tags: tesla, lithium refinery, spodumene

This ultra-cheap, water-based iron battery could last 16 years without degrading (techspot.com)

2026-05-01 | get Water-Based Iron Battery Kit → | tags: iron flow battery, chinese academy of sciences, advanced energy materials

IEEE Professional Development Suite Teaches In-Demand Skills (spectrum.ieee.org)

2026-03-27 | by Angelique Parashis | get IEEE Professional Development Course → | tags: ieee, telecommunications, microelectronics

Show HN: Vanilla JavaScript refinery simulator built to explain job to my kids (news.ycombinator.com)

2026-03-11 | by Taylor Bloomquist | get Refinery Simulator → | tags: acid, discharge, open

Nexperia China begins making its own chips after split with Dutch parent (techspot.com)

2026-03-11 | get Nexperia Semiconductor Development Kit → | tags: nexperia, china, bipolar discrete

Practical lithium–organic batteries enabled by an n-type conducting polymer (feeds.nature.com)

2026-02-18 | by Li | get Nanocellulose battery → | tags: cathode, charge, charge discharge

Today's top topics: openai anthropic apple ai safety google dario amodei ios 27 iphone 18 pro nvidia microsoft

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