公开(公告)号：US10566615B2

公开(公告)日：2020-02-18

申请号：US15186912

申请日：2016-06-20

Applicant: Universitaet Stuttgart

Inventor： Juergen H. Werner ,  Markus Schubert ,  Juergen Koehler ,  Ahmed Garamoun ,  Christian Saemann

IPC: H01M4/13 ,  H01M10/26 ,  H01M6/04 ,  H01M4/82 ,  H01M6/00 ,  H01M4/38 ,  H01M4/04 ,  H01M4/12 ,  H01M4/134 ,  H01M4/66 ,  H01M10/0525 ,  H01M2/02 ,  H01M12/06 ,  H01M4/02

Abstract: A method is disclosed for producing a battery preparing a first electrode by providing a substrate and depositing onto the substrate at least one silicon-based semiconductor layer of a specific porosity, in particular a doped micro-crystalline silicon layer that may comprise additions of Ge, Sn and/or C; treating the semiconductor layer using laser radiation for fully or partially varying the porosity, in particular by increasing the porosity of active regions for accommodating ions, in particular lithium-ions, or for reducing the porosity of inactive regions, for decreasing the ion-absorption capacity; arranging the first electrode together with a second electrode and an electrolyte within a housing; and contacting the two electrodes and connecting with external terminals accessible from outside the housing. Also disclosed is a battery made according to the disclosed method.