公开(公告)号：US20210193398A1

公开(公告)日：2021-06-24

申请号：US17173748

申请日：2021-02-11

Applicant: Maxwell Technologies, Inc.

Inventor： Santhanam RAMAN ,  James BORKENHAGEN ,  Xiaomei XI ,  Xiang-Rong YE

IPC: H01G11/42 ,  H01M4/62 ,  H01G11/38 ,  H01G11/28 ,  H01G11/06 ,  H01M4/04 ,  H01M4/133 ,  H01G11/50 ,  H01G11/52 ,  H01G11/86 ,  H01M4/587 ,  H01M10/0525

Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, where the anode and/or electrode includes an electrode film having a super-fibrillized binder material and carbon. The electrode film can have a reduced quantity of the binder material while maintaining desired mechanical and/or electrical properties. A process for fabricating the electrode film may include a fibrillization process using reduced speed and/or increased process pressure such that fibrillization of the binder material can be increased. The electrode film may include an electrical conductivity promoting additive to facilitate decreased equivalent series resistance performance. Increasing fibrillization of the binder material may facilitate formation of thinner electrode films, such as dry electrode films.

公开(公告)号：US20170256782A1

公开(公告)日：2017-09-07

申请号：US15442261

申请日：2017-02-24

Applicant: Maxwell Technologies, Inc.

Inventor： Santhanam RAMAN ,  Xiang-Rong YE ,  Xiaomei XI

IPC: H01M4/04 ,  H01M4/587 ,  H01G11/34 ,  H01G11/06 ,  H01G11/28 ,  H01M10/0525 ,  H01G11/52

CPC classification number: H01M4/0447 ,  H01G11/06 ,  H01G11/14 ,  H01G11/28 ,  H01G11/34 ,  H01G11/38 ,  H01G11/50 ,  H01G11/52 ,  H01G11/60 ,  H01G11/62 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/13

Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, where the anode can have a desired lithium pre-doping level to facilitate desired capacitor performance. Controlled anode pre-doping can include printing lithium powder or a mixture including lithium powder onto a surface of the anode. Controlled anode pre-doping can include electrochemically incorporating lithium ions into the anode. A duration of the pre-doping process can be selected such that desired anode pre-doping is achieved.

公开(公告)号：US20170256367A1

公开(公告)日：2017-09-07

申请号：US15443939

申请日：2017-02-27

Applicant: Maxwell Technologies, Inc.

Inventor： Santhanam RAMAN ,  James BORKENHAGEN ,  Xiaomei XI ,  Xiang-Rong YE

IPC: H01G11/42 ,  H01M4/62 ,  H01G11/52 ,  H01G11/50 ,  H01G11/86 ,  H01M10/0525 ,  H01M4/587

CPC classification number: H01G11/42 ,  H01G11/06 ,  H01G11/28 ,  H01G11/38 ,  H01G11/50 ,  H01G11/52 ,  H01G11/86 ,  H01M4/0416 ,  H01M4/043 ,  H01M4/133 ,  H01M4/587 ,  H01M4/621 ,  H01M4/625 ,  H01M10/0525 ,  Y02E60/13

Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, where the anode and/or electrode includes an electrode film having a super-fibrillized binder material and carbon. The electrode film can have a reduced quantity of the binder material while maintaining desired mechanical and/or electrical properties. A process for fabricating the electrode film may include a fibrillization process using reduced speed and/or increased process pressure such that fibrillization of the binder material can be increased. The electrode film may include an electrical conductivity promoting additive to facilitate decreased equivalent series resistance performance. Increasing fibrillization of the binder material may facilitate formation of thinner electrode films, such as dry electrode films.