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Lonnie Johnson is an African American engineer. His companies, Excellatron Solid State and Johnson Electro-Mechanical Systems (JEMS) are working to improve energy technology.

Excellatron is introducing thin rechargeable film batteries to replace the current industry leader Li-ion.

JEMS has developed the Johnson Themro-Electrochemical Converter System (JTEC), which converts thermal energy to electrical energy using a non-steam process.

His most famous invention has been the Super Soaker water gun, a pressurized water gun safe enough for children to play with, with sales close to one billion dollars.

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14y ago

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