公开(公告)号：US20210175497A1

公开(公告)日：2021-06-10

申请号：US17179794

申请日：2021-02-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hang Su ,  Pinghua Wang ,  Yangxing Li

IPC: H01M4/36 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/38 ,  H01M4/48 ,  H01M4/62

Abstract: A silicon-based composite anode material for a battery includes a silicon-based material core and a coating layer coated on a surface of the silicon-based material core. The coating layer includes a first coating layer disposed on the surface of the silicon-based material core and a second coating layer disposed on a surface of the first coating layer. The first coating layer includes a two-dimensional quinone-aldehyde covalent organic framework material, and the second coating layer includes a material with high ionic conductivity. The second coating layer is relatively rigid, and can maintain structural stability of the entire material during silicon expansion and contraction, and effectively alleviates volume expansion.

公开(公告)号：US20230333803A1

公开(公告)日：2023-10-19

申请号：US18336885

申请日：2023-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hang Su

IPC: G06F3/14 ,  G06F3/0488

CPC classification number: G06F3/1454 ,  G06F3/0488

Abstract: An enhanced screen sharing method includes: a first electronic device that displays a first shared interface, and sends interface data of the first shared interface to a second electronic device. The second electronic device receives the interface data, and displays a second shared interface corresponding to the first shared interface. The second electronic device enables an interconnection mode for the first electronic device, and when detecting a trigger operation performed by a user on the second shared interface, determines event information corresponding to the trigger operation. The event information includes an event type and operation area information that correspond to the trigger operation. The second electronic device sends the event information to the first electronic device. The first electronic device receives the event information, and performs a corresponding operation based on the event information.

公开(公告)号：US20220255055A1

公开(公告)日：2022-08-11

申请号：US17733167

申请日：2022-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hang Su ,  Guocheng Xu ,  Pinghua Wang ,  Yangxing Li

IPC: H01M4/134 ,  H01M4/62 ,  H01M10/0525

Abstract: Embodiments of the present invention provide a negative electrode material, including a doped silicon-based material. The doped silicon-based material includes a silicon-based material and doping metal elements distributed inside particles of the silicon-based material. The silicon-based material includes nano-silicon or silicon monoxide. A doping amount of the doping metal elements ranges from 1 ppm to 1000 ppm. The negative electrode material is obtained by doping metal elements with an extreme low content into a crystal structure of the silicon-based material, to maintain stability of an original crystal structure of the silicon-based material while improving conducting performance of the silicon-based material. Therefore, an energy density of a cell can be effectively improved, and the silicon-based material is not prone to be pulverized in a charging/discharging process. The embodiments of the present invention further provide a production method of the negative electrode material, a lithium-ion battery, and a terminal.