Patents by Inventor Saurabh RANJAN

Saurabh RANJAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY
    Publication number: 20230139370
    Abstract: A secondary battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution. The positive electrode active material includes a lithium composite oxide of a layered rock-salt type. The lithium composite oxide includes lithium, cobalt, aluminum, magnesium, an additional element, and oxygen as constituent elements. The additional element includes at least one of fluorine, phosphorous, or sulfur. According to an analysis of the positive electrode active material by inductively coupled plasma optical emission spectrometry, a content of aluminum is greater than a content of magnesium.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 4, 2023
    Inventors: Yuki NIWATA, Saurabh RANJAN, Kensuke SAMESHIMA, Yosuke HOSOYA