ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,730, issued on Oct. 28, was assigned to Ningde Amperex Technology Ltd. (Ningde, China).
"Negative electrode active material and electrochemical device and electronic device using the same" was invented by Pengyang Feng (Fujian, China), Yuxin Cai (Fujian, China), Jiali Dong (Fujian, China) and Yuansen Xie (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A negative electrode active material having a median particle size D1v50, the negative electrode active material has a median particle size D2v50 after being compressed under a pressure of 1 t, and D2v50/D1v50 is not less than 0.8. The negative electrode active material achieves a balance...