公开(公告)号：US20230032873A1

公开(公告)日：2023-02-02

申请号：US17788684

申请日：2020-11-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lun LU ,  Lie YANG ,  Jiahua LIANG ,  Fan XU ,  Xiaofeng ZHOU

IPC: H01M10/0587 ,  H01M50/538 ,  H01M50/547

Abstract: The battery provided in this application and having at least two ports is obtained by winding a first electrode and a second electrode that have a novel structure (for example, a plurality of tabs separately protrude from a first long side and a second long side of an electrode, and the tabs are disposed on a non-edge area). In addition, in the terminal device including the battery, the battery and another charging/discharging component may form at least two charging/discharging links, so that the terminal device can have a stronger fast charging capability, and heat dissipation pressure of each charging/discharging link can be relieved. Moreover, stress inside the battery is evenly distributed, so that interface deterioration of the electrode that is caused by stress unevenness can be alleviated. This effectively reduces a risk of shading and lithium plating generated in a cathode charging/discharging cycle, and improves performance of the battery.

公开(公告)号：US20150103641A1

公开(公告)日：2015-04-16

申请号：US14571711

申请日：2014-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liankui LIN ,  Fan XU

IPC: H04L12/803 ,  H04L12/24

CPC classification number: H04L47/125 ,  H04L41/0654 ,  H04L43/16

Abstract: Embodiments of the present invention provide a load sharing method and apparatus, and a board. The method includes: receiving, by a built-in forwarding unit, to-be-transmitted data; obtaining, by a management control unit, current load ratios of forwarding units; and if it is determined that a current load ratio of any forwarding unit of the forwarding units is less than a preset load ratio threshold, determining that the forwarding unit is a unit for forwarding the to-be-transmitted data, where the built-in forwarding unit and the management control unit are located in a same board, and the forwarding units include the built-in forwarding unit and another forwarding unit outside the board. The present invention can solve a problem of low data transmission reliability in an existing load sharing method.

Abstract translation: 本发明的实施例提供一种负载分担方法和装置以及电路板。 该方法包括：通过内置转发单元接收要发送的数据; 由管理控制单元获取转发单元的当前负载比; 并且如果确定转发单元的任何转发单元的当前负载率小于预设负载率阈值，则确定转发单元是用于转发待发送数据的单元，其中内置 转发单元和管理控制单元位于同一板中，转发单元包括内置转发单元和板外的另一转发单元。 本发明可以解决现有负载分担方法中数据传输可靠性低的问题。

公开(公告)号：US20220293922A1

公开(公告)日：2022-09-15

申请号：US17831244

申请日：2022-06-02

Applicant: Huawei Technologies Co., Ltd. ,  XTC NEW ENERGY MATERIALS (XIAMEN) LTD.

Inventor： Yu LEI ,  Dan LEI ,  Yangxing LI ,  Jian ZHANG ,  Leiying ZENG ,  Shengan XIA ,  Yunlei GAO ,  Fan XU

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  C01G51/00 ,  C01G53/00

Abstract: A lithium-ion battery cathode material and a method for preparing the same are disclosed. The lithium-ion battery cathode material includes a layered cathode material matrix and a defect layer. The layered cathode material matrix includes body layers and lithium layers, and the body layer includes a transition metal layer and a lithium layer. The defect layer includes atoms with a periodic arrangement different from that of atoms in the matrix or with content different from that of an element in the matrix. The defect layer is parallel to a 003 crystal plane of the layered cathode material matrix, and dimensions of the defect layer are 0.1 nm to 50 nm in at least one direction and 10 nm to 5000 nm in at least another direction.

公开(公告)号：US20230006307A1

公开(公告)日：2023-01-05

申请号：US17900644

申请日：2022-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinzhi ZHANG ,  Yaoming DENG ,  Yunlei GAO ,  Dongfang YANG ,  Fan XU ,  Fengchao XIE ,  Zhengjie LI

IPC: H01M50/417 ,  H01M10/0525 ,  H01M50/449 ,  H01M50/403

Abstract: Embodiments of this application provide a battery separator, including a polyolefin-based porous separator, where the polyolefin-based porous separator includes polyethylene resin, an elongation rate of the polyolefin-based porous separator in an MD direction is greater than 120%, an elongation rate in a TD direction is greater than 120%, and for the polyolefin-based porous separator, crystallinity at a first-time temperature rise of polyethylene that is measured by using a differential scanning calorimeter is less than 65%, crystallinity at a second-time temperature rise is less than 55%, and a difference between the crystallinity at the first-time temperature rise and the crystallinity at the second-time temperature rise is less than 12%. The battery separator features a high elongation rate and a low temperature of closing a pore.

公开(公告)号：US20220085413A1

公开(公告)日：2022-03-17

申请号：US17536697

申请日：2021-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang MA ,  Dejun QIN ,  Yaoming DENG ,  Yangxing LI ,  Fan XU

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0568

Abstract: Embodiments of the present invention provide a lithium secondary battery electrolyte including a lithium salt, an organic solvent, and a flame retardant, and the flame retardant includes (pentafluoro) cyclotriphosphazene substituted by an electron donating group and (pentafluoro) cyclotriphosphazene substituted by an electron withdrawing group. Both two flame retardants: the (pentafluoro) cyclotriphosphazene substituted by the electron donating group and the (pentafluoro) cyclotriphosphazene substituted by the electron withdrawing group are added to the lithium secondary battery electrolyte, so that a battery has both high safety performance and good electrochemical performance. The embodiments of the present invention further provide a preparation method for the lithium secondary battery electrolyte and a lithium secondary battery including the lithium secondary battery electrolyte.