Patents by Inventor Rajankumar L. Patel

Rajankumar L. Patel 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).

  • Interconnected silicon porous structure for anode active material
    Patent number: 11223036
    Abstract: An anode active material comprises a silicon-carbon secondary particle comprising a composite having an exterior conformal carbon coating and formed of type I primary particles. Each type I primary particle comprises a core particle of interconnected silicon, the interconnected silicon formed of nano-sized silicon particles each connected to at least one other particle, inner pores internal to the core particle and defined by the interconnected silicon, an internal carbon coating on internal wall surfaces of the inner pores and a conformal carbon coating on the core particle.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: January 11, 2022
    Assignee: Apple Inc.
    Inventors: Zuqin Liu, Richard M. Mank, Hyea Kim, Hongli Dai, Sunho Kang, Ji-Guang Zhang, Ran Yi, Qiuyan Li, Xiaolin Li, Wu Xu, Rajankumar L. Patel, Hyung-Seok Lim, Chongmin Wang, Langli Luo, Yang He
  • LITHIUM ION BATTERY ELECTRODE
    Publication number: 20210028446
    Abstract: Disclosed herein are a method of transition metal doping while simultaneously forming an ultra-thin film coating of the transition metal oxide using atomic layer deposition (ALD) on lithium ion battery (LIB) electrode particles; a product formed by the disclosed method; and the synergetic effect of the transition metal doping simultaneously with forming the ALD ultra-thin film transition metal oxide coating.
    Type: Application
    Filed: February 21, 2017
    Publication date: January 28, 2021
    Inventors: Xinhua LIANG, Rajankumar L. PATEL
  • Interconnected Silicon Porous Structure For Anode Active Material
    Publication number: 20200161635
    Abstract: An anode active material comprises a silicon-carbon secondary particle comprising a composite having an exterior conformal carbon coating and formed of type I primary particles. Each type I primary particle comprises a core particle of interconnected silicon, the interconnected silicon formed of nano-sized silicon particles each connected to at least one other particle, inner pores internal to the core particle and defined by the interconnected silicon, an internal carbon coating on internal wall surfaces of the inner pores and a conformal carbon coating on the core particle.
    Type: Application
    Filed: November 18, 2019
    Publication date: May 21, 2020
    Inventors: Zuqin Liu, Richard M. Mank, Hyea Kim, Hongli Dai, Sunho Kang, Ji-Guang Zhang, Ran Yi, Qiuyan Li, Xiaolin Li, Wu Xu, Rajankumar L. Patel, Hyung-Seok Lim, Chongmin Wang, Langli Luo, Yang He