Patent 11888112 was granted and assigned to Apple (company) on January, 2024 by the United States Patent and Trademark Office.
Energy storage devices, battery cells, and batteries of the present technology may include a first current collector and a second current collector. The batteries may include an anode material coupled with the first current collector. The batteries may include a cathode material coupled with the second current collector. The batteries may also include a polymeric material coupled between the cathode material and the anode material. The polymeric material may be characterized by a cationic backbone. The polymeric material may be configured to selectively provide anionic transport across the polymeric material while limiting cationic transport across the polymeric material.