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  "path": "/news/2026-06-microwave-based-method-upcycle-lithium.html",
  "publishedAt": "2026-06-16T09:20:10.000Z",
  "site": "https://techxplore.com",
  "tags": [
    "Energy & Green Tech"
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  "textContent": "Lithium-ion batteries power everything from phones and electric vehicles to grid-scale energy storage and earbuds, but their cathodes—the part of batteries denoted by a plus sign—are expensive to make and rely on minerals sourced from a limited number of countries, including lithium and cobalt. The Democratic Republic of the Congo, for example, is responsible for mining about 70% of the world's cobalt.",
  "title": "Microwave-based method to upcycle old lithium-ion cathodes"
}