公开(公告)号：WO2020139823A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/068303

申请日：2019-12-23

Applicant: WORCESTER POLYTECHNIC INSTITUTE

Inventor： WANG, Yan ,  ZHENG, Zhangfeng ,  LUDWIG, Brandon ,  PAN, Heng ,  LIU, Jin ,  LIU, Yangtao

IPC: H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0585

Abstract: A dry electrode manufacturing process is employed for low cost battery through a dry mixing and formation process. A thermal activation renders the dry fabricated electrode comparable to conventional slurry casted electrodes. The dry electrode mixture results from a combination of a plurality of types of constituent particles, including at least an active charge material and a binder, and typically a conductive material such as carbon. The process heats the deposited mixture to a moderate temperature for activating the binder for adhering the mixture to the substrate, and compresses the deposited mixture to a thickness for achieving an electrical sufficiency of the compressed, deposited mixture as a charge material in a lithium-ion battery. In order to increase the bonding between the current collector and charge materials, an adhesive interlayer is applied through dry printing.

公开(公告)号：WO2017040917A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/050096

申请日：2016-09-02

Applicant: WORCESTER POLYTECHNIC INSTITUTE

Inventor： WANG, Yan ,  ZHENG, Zhangfeng ,  LUDWIG, Brandon ,  PAN, Heng

IPC: H01M4/04 ,  C25B11/00

CPC classification number: H01M4/0419 ,  B05B5/032 ,  B05B5/1683 ,  B05D1/06 ,  B05D3/0254 ,  B05D3/12 ,  B05D2401/32 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/623 ,  H01M4/625 ,  H01M10/052

Abstract: A dry electrode manufacturing process employed for low cost battery through a dry mixing and formation process. A thermal activation renders the dry fabricated electrode comparable to conventional slurry casted electrodes. The dry electrode mixture results from a combination of a plurality of types of constituent particles, including at least an active charge material and a binder, and typically a conductive material such as carbon. The process heats the deposited mixture to a moderate temperature for activating the binder for adhering the mixture to the substrate; and compresses the deposited mixture to a thickness for achieving an electrical sufficiency of the compressed, deposited mixture as a charge material in a battery.

Abstract translation: 干式电极制造方法，其通过干式混合和形成方法用于低成本电池。 热激活使得干燥的制造电极与常规的浆料铸造电极相当。 干电极混合物是由至少包括活性电荷材料和粘合剂的多种构成颗粒的组合以及通常的导电材料如碳组成的。 该方法将沉积的混合物加热至中等温度，以激活粘合剂以将混合物粘附到基底上; 并将沉积的混合物压缩到一个厚度，以实现作为电池中的电荷材料的压缩沉积的混合物的电气充足性。