公开(公告)号：US20210091368A1

公开(公告)日：2021-03-25

申请号：US16580334

申请日：2019-09-24

申请人： Nanotek Instruments, Inc.

发明人： Evan House ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/04 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/139 ,  H01G11/86 ,  H01G11/32 ,  H01G11/26

摘要： Provided is a process for producing a bi-polar electrode for a battery or capacitor, the process comprising: (a) providing a conductive material foil having a thickness from 10 nm to 100 μm and two opposing parallel primary surfaces, and coating one or both of the primary surfaces with a layer of graphene material having a thickness from 5 nm to 50 μm to form a graphene-coated current collector; and (b) depositing a negative electrode layer and a positive electrode layer respectively onto two opposing primary surfaces of the graphene-coated current collector, wherein the negative electrode layer is in physical contact with the layer of graphene material or in direct contact with a primary surface of the conductive material foil and the positive electrode layer is in physical contact with the layer of graphene material or directly with the opposing primary surface of the conductive material foil.

公开(公告)号：US20210091383A1

公开(公告)日：2021-03-25

申请号：US16580324

申请日：2019-09-24

申请人： Nanotek Instruments, Inc.

发明人： Evan House ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/66 ,  H01M4/36 ,  H01G11/68 ,  H01G11/32 ,  H01G11/28 ,  H01G11/24

摘要： Provided is a bi-polar electrode for a battery, wherein the bi-polar electrode comprises: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 μm and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of graphene material having a thickness from 10 nm to 10 μm; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of graphene material or directly with a primary surface of the conductive material foil (if not coated with a graphene material layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.

公开(公告)号：US11121359B2

公开(公告)日：2021-09-14

申请号：US16598584

申请日：2019-10-10

申请人： Nanotek Instruments, Inc.

发明人： Evan House ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/02 ,  H01M4/133 ,  H01M4/583 ,  H01G11/28 ,  H01G11/48 ,  H01G11/06 ,  H01G11/86 ,  H01G11/32

摘要： Provided is a bi-polar electrode for a battery, the electrode comprising: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 μm and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of exfoliated graphite or expanded graphite material having a thickness from 10 nm to 50 μm; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of exfoliated graphite or expanded graphite material or directly with a primary surface of the conductive material foil (if not coated with a exfoliated or expanded graphite layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.

公开(公告)号：US20210111391A1

公开(公告)日：2021-04-15

申请号：US16598584

申请日：2019-10-10

申请人： Nanotek Instruments, Inc.

发明人： Evan House ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/133 ,  H01M4/583 ,  H01G11/28 ,  H01G11/32 ,  H01G11/48 ,  H01G11/06 ,  H01G11/86

摘要： Provided is a bi-polar electrode for a battery, the electrode comprising: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 μm and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of exfoliated graphite or expanded graphite material having a thickness from 10 nm to 50 μm; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of exfoliated graphite or expanded graphite material or directly with a primary surface of the conductive material foil (if not coated with a exfoliated or expanded graphite layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.