Polymerized lithium ion battery cells and modules with permeability management features
First Claim
1. A lithium ion (Li-ion) battery module, comprising:
- a container comprising one or more partitions that define a plurality of compartments within the container, wherein each of the plurality of compartments is configured to receive and hold a prismatic Li-ion electrochemical cell element and electrolyte; and
a cover configured to be disposed over the container to close the compartments;
wherein the container comprises a polymer blend comprising a base polymer and a nanomaterial blended into the base polymer, wherein the base polymer is electrically nonconductive, wherein the nanomaterial is configured to enhance the impermeability of the container to reduce ingress of moisture into the compartments and to reduce egress of the electrolyte from the compartments, and wherein the nanomaterial comprises nanocellulosic fibers.
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Accused Products
Abstract
A lithium ion (Li-ion) battery module includes a container with one or more partitions that define compartments within the container. Each of the compartments is configured to receive and hold a prismatic Li-ion electrochemical cell element and electrolyte. The Li-ion battery module also includes a cover configured to be disposed over the container to close the compartments. The container includes an electrically nonconductive polymeric material (e.g., plastic) with a nanomaterial applied to the polymeric material. The nanomaterial enhances the impermeability of the container to reduce ingress of moisture into the compartments and to reduce egress of the electrolyte from the compartments.
31 Citations
24 Claims
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1. A lithium ion (Li-ion) battery module, comprising:
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a container comprising one or more partitions that define a plurality of compartments within the container, wherein each of the plurality of compartments is configured to receive and hold a prismatic Li-ion electrochemical cell element and electrolyte; and a cover configured to be disposed over the container to close the compartments; wherein the container comprises a polymer blend comprising a base polymer and a nanomaterial blended into the base polymer, wherein the base polymer is electrically nonconductive, wherein the nanomaterial is configured to enhance the impermeability of the container to reduce ingress of moisture into the compartments and to reduce egress of the electrolyte from the compartments, and wherein the nanomaterial comprises nanocellulosic fibers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A lithium ion (Li-ion) battery module, comprising:
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a container comprising one or more partitions that define a plurality of compartments within the container, wherein each of the plurality of compartments is configured to receive and hold a prismatic Li-ion electrochemical cell element and electrolyte; and a cover configured to be disposed over the container to close the compartments; wherein the container comprises an electrically nonconductive polymeric material coated with a nanomaterial such that the nanomaterial forms a layer within each of the compartments, wherein the nanomaterial enhances the impermeability of the container to reduce ingress of moisture into the compartments and to reduce egress of the electrolyte from the compartments, and wherein the nanomaterial comprises nanocellulosic fibers. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A lithium ion (Li-ion) battery cell, comprising:
a housing configured to receive and hold a Li-ion electrochemical cell element and electrolyte, wherein the housing comprises a polymer blend having a nanomaterial blended with an electrically nonconductive base polymer material, wherein the nanomaterial enhances the impermeability of the housing to reduce ingress of moisture and to reduce egress of the electrolyte, and wherein the nanomaterial comprises nanocellulosic fibers. - View Dependent Claims (20, 21, 22)
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23. A method for manufacturing a lithium ion (Li-ion) battery module, comprising:
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forming a container configured to receive and hold a Li-ion electrochemical cell element, wherein the container comprises a polymer blend having at least an electrically nonconductive base polymer; and blending a nanomaterial comprising nanocellulosic fibers into the base polymer of the container to generate the polymer blend. - View Dependent Claims (24)
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Specification