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Ahn Young-joon / AP

A small San Diego-area company named Amionx plans to reveal a new technology later on Tuesday that it says can be put into smartphones and prevent standard lithium-ion batteries from overheating. Amionx is a spinoff of American Lithium Energy Corp. which has used the technology in more than 20,000 batteries for the military. Former Qualcomm president Steve Altman is an investor and president of Amionx's board of directors.

What's new about it: Ahead of the announcement, Amionx executives told Axios they have developed a fuse that kicks in when a battery hits a certain voltage, temperature or current threshold. That prevents problems caused by external heat, overcharging or an internal short. The approach, the company tells me, adds minimal cost and can be integrated into traditional battery manufacturing techniques and could be commercially ready in as little as six months.

The key question is whether the smartphone manufacturers will find Safe Core as appealing as Amionx makes it sound. The company is relying on licensing its technology to others and so far the company has yet to sign on any of the major phone makers.

Go deeper

1 hour ago - Health

FDA authorizes mix-and-match for COVID booster shots

Photo: Francine Orr/Los Angeles Times via Getty Images

The Food and Drugs Administration (FDA) on Wednesday gave its approval for Americans to get booster shots that are different from the COVID vaccine they initially received.

Why it matters: The recommendation from the FDA, which also authorized booster shots for people who received Moderna and Johnson & Johnson vaccines on Wednesday, paves the way for an expansion of booster shots.

GOP congressman forfeits committee seats after indictment

Rep. Jeff Fortenberry. Photo: Al Drago/Bloomberg via Getty Images

Rep. Jeff Fortenberry (R-Neb.) on Wednesday stepped down from his committee assignments after being indicted for lying to federal investigators amid a probe into illegal campaign donations.

What they're saying: In a letter to House Speaker Nancy Pelosi, Fortenberry said he is "grateful for the outpouring of support from my friends and colleagues as we work against the injustice confronting me."

Rahm Emanuel questioned on murder of Laquan McDonald in confirmation hearing

Rahm Emanuel during a Senate Foreign Relations Committee confirmation hearing on Oct. 20. Photo: Sarah Silbiger/Bloomberg via Getty Images

Former Chicago Mayor Rahm Emanuel spoke about the murder of Laquan McDonald during his Senate confirmation hearing Wednesday to become the U.S. ambassador to Japan, saying that "there's not a day or a week that has gone by in the last seven years I haven't thought about this."

Catch up quick: McDonald was a Black teenager who was fatally shot 16 times by Chicago police during Emanuel's tenure as the city's mayor. The 2014 shooting triggered massive protests, both because of its nature and the fact that the officers' body-cam footage was concealed for years.