Lithium Cell Having a Glassy Carbon Layer
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsByron Konstantinos ANTONOPOULOS, Barbara STIASZNY
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Abstract
A separator for a lithium secondary cell is provided. The separator has a separator substrate, selected from porous separators for liquid-electrolyte cells and solid-electrolyte separators having lithium ion conductivity, and has a layer of glassy carbon (GC), which is applied at least on one side of the separator substrate. A lithium secondary cell is also provided, which contains a negative electrode, a positive electrode, and a separator placed between the negative electrode and the positive electrode. The glassy carbon layer of the separator faces the negative electrode.
Claims17
A separator for a lithium secondary cell, comprising:
- a separator substrate selected from porous separators for liquid electrolyte cells and solid-state electrolyte separators having lithium-ion conductivity;
- and
- a layer of glassy carbon (GC) applied atop at least on one side of the separator substrate.
A positive electrode having an integrated separator layer for a lithium all-solid-state cell, comprising:
- a positive electrode layer comprising at least one cathode active material, at least one solid-state electrolyte having lithium-ion conductivity and optionally at least one electrically conductive additive and/or at least one binder;
- a separator layer applied atop the positive electrode layer and comprising at least one solid-state electrolyte having lithium-ion conductivity and optionally at least one binder;
- and
- a layer of glassy carbon applied atop the separator layer.
A negative electrode having an integrated glassy carbon layer for a lithium all-solid-state cell, comprising:
- a negative electrode layer comprising at least one anode active material, at least one solid-state electrolyte having lithium-ion conductivity and optionally at least one electrically conductive additive and/or at least one binder;
- a layer of glassy carbon applied atop the negative electrode layer;
- and
- optionally a separator layer applied atop the glassy carbon layer and comprising at least one solid-state electrolyte having lithium-ion conductivity and optionally at least one binder.
Dependencies are inferred from the claim text.