Battery cell having a coated electrode and the production thereof
AssigneeRobert Bosch GmbH
InventorAndreas Netz
Life of this patent
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Abstract
A battery cell (10) having a positive electrode (3) and a negative electrode (1), wherein the, in particular, negative electrode (1) comprises a coating (5) containing a polymer which contains catechol groups and the coating (5) is a dry coating, is described.
Claims11
A battery cell (10) having a positive electrode (3) and a negative electrode (1), characterized in that one of the electrodes (1) has a coating (5) containing a polymer which contains catechol groups, where the coating (5) is a dry coating.
A process for producing an electrode (1) of a battery cell (10) having a coating (5), wherein the coating (5) comprises a polymer containing catechol groups and the coating (5) is applied dry to the electrode (1), the process comprising the following steps:
- production of a pulverulent dry composition (13);
- pressing of the pulverulent dry composition (13) to form a dry film (19);
- and
- lamination of the dry film (19) onto the electrode (1) so that the dry film (19) forms the coating (5).
A process for producing an electrode (1) of a battery cell (10) having a coating (5), wherein the coating (5) comprises a polymer containing catechol groups and the coating (5) is applied by means of a dry coating process to the electrode (1), the process comprising the following steps:
- production of a pulverulent dry composition (13);
- coating (5) of the electrode (1) with the pulverulent dry composition (13) so that this forms the coating (5);
- and
- after-densification of the dry coating (5).
Dependencies are inferred from the claim text.