中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

21 records (took 0.021 seconds)

    Graphite and Group IVA Composite Particles and Methods of Making
    13.
    发明申请
    Graphite and Group IVA Composite Particles and Methods of Making 审中-公开

    公开(公告)号：US20200044240A1

    公开(公告)日：2020-02-06

    申请号：US16338576

    申请日：2017-10-09

    Applicant: KRATOS LLC

    Inventor： Timothy D. Newbound ,  Reza Kavian ,  Jeff A. Norris ,  Richard Owen Crowther

    IPC: H01M4/36 ,  H01M4/587 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/62

    Abstract: The present invention provides micron or submicron particles (NPs) that are comprised of a variety of materials, including Group IVA elements such as silicon (Si) that are known to have a high electrochemical capacity in Li-ion secondary batteries. The micron or sub-micron particles of the invention are provided with a surface layer, or surface modification, that imparts additional functionality to the particle. Surface modification prevents the formation of a dielectric oxide layer on the primary Group IV A particles, allowing elements of the surface modifier to covalently bond directly to the Group IV A elements, accommodates volumetric expansion to help mitigate ingress of electrolyte solvents from penetrating the surface modifier, mitigates disruption of SEI layers formed during electrochemical cycling and provides favorable surface properties to allow the formation of strong bonding to binders and other materials in the electrode composite. The NPs can be combined with graphite particles to create a composite graphite particle that can be used for battery anodes.

    Group IVA functionalized particles and methods of use thereof
    15.
    发明授权
    Group IVA functionalized particles and methods of use thereof 有权
    IVA族官能化颗粒及其使用方法

    公开(公告)号：US09461309B2

    公开(公告)日：2016-10-04

    申请号：US13972382

    申请日：2013-08-21

    Applicant: Kratos LLC

    Inventor： Timothy D. Newbound ,  Leslie Matthews ,  Jeff A. Norris

    IPC: B23B19/00 ,  H01M4/66 ,  H01M10/0525

    CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/386 ,  H01M4/66 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54

    Abstract: Disclosed herein are functionalized Group IVA particles, methods of preparing the Group IVA particles, and methods of using the Group IVA particles. The Group IVA particles may be passivated with at least one layer of material covering at least a portion of the particle. The layer of material may be a covalently bonded non-dielectric layer of material. The Group IVA particles may be used in various technologies, including lithium ion batteries and photovoltaic cells.

    Abstract translation: 本文公开的是官能化的IVA族颗粒，制备IVA族颗粒的方法，以及使用IVA族颗粒的方法。 组IVA颗粒可以被覆盖至少一部分颗粒的至少一层材料钝化。 材料层可以是共价键合的非电介质层材料。 组IVA颗粒可以用于各种技术，包括锂离子电池和光伏电池。

Patent Agency Ranking