Intrinsic overcharge protection for battery cell
AssigneeScania CV AB
InventorPontus SVENS
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Abstract
The specification discloses a battery cell having an intrinsic overcharge protection, a battery made with the battery cell, and a method for manufacturing the battery cell. The battery cell includes, in the following order, a positive electrode, at least one polymer film that is electrically conducting and has an ion conducting electrolyte distributed therein, a P-doped and electrically semi-conducting and ion conducting film, an N-doped and electrically semi-conducting and ion conducting film, and a negative electrode.
Claims24
A battery cell having an intrinsic overcharge protection capability comprising in the following order,
- a positive electrode;
- at least one polymer film, which is electrically conducting and comprises one ion conducting electrolyte distributed in said at least one polymer film;
- an N-doped electrically semi-conducting and ion conducting film;
- a P-doped electrically semi-conducting and ion conducting film;
- and
- a negative electrode.
A method for the manufacture of a battery cell having an intrinsic overcharge protection capability, comprising in the following order,
- forming a positive electrode;
- forming at least one polymer film on said positive electrode, which is electrically conducting and wherein an ion conducting electrolyte is distributed in said at least one polymer film;
- forming an N-doped electrically semi-conducting and ion conducting film on said at least one polymer film;
- forming a P-doped electrically semi-conducting and ion conducting film on said N-doped electrically semi-conducting and on conducting film;
- and
- forming a negative electrode on said P-doped electrically semi-conducting and ion conducting film.
Dependencies are inferred from the claim text.