Cheap and reliable Lithium Ion Batteries?

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How L.A. removed 1 million pounds of flammable lithium-ion ...

 Cheap and reliable, lithium-ion batteries have helped the world’s transition to green energy but come with one major risk: When damaged, the batteries can get very hot very quickly, burst open in a puff of toxic, flammable gas and erupt into flames that are difficult to extinguish.