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US 9,502,734 B1Granted
Flexible battery
AssigneeAmazon Technologies, Inc.
InventorsJames Robert Lim, Yuting Yeh, Erik Avy Vaknine, David Wang
Life of this patent
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Abstract
Various embodiments are directed to flexible battery structures comprising a flexible hinge region. For example, a flexible battery structure may comprise a plurality of battery layers. A first portion of the layers may be continuous across the hinge region and one or more cell regions. A second portion of the layers may be discontinuous at the hinge region.
Claims18
A flexible battery structure, the battery structure comprising:
- a plurality of battery layers positioned substantially parallel to one another, wherein the plurality of battery layers comprises:
- a current collector layer;
- a first active layer;
- and
- an electrolyte layer comprising a first sub-layer and a second sub-layer;
- a first cell region;
- a second cell region;
- a third cell region;
- a fourth cell region;
- a first hinge region positioned between the first cell region and the second cell region, wherein a first portion of the plurality of battery layers is continuous across the first cell region, the second cell region and the first hinge region, wherein a second portion of the plurality of battery layers is discontinuous at the first hinge region, and wherein the first sub-layer and the second sub-layer overlap at the first hinge region;
- a second hinge region positioned between the third cell region and the second cell region:
- and a third hinge region positioned between the third cell region and the fourth cell region.
9 more elements
A method of making a flexible battery structure, the
- method comprising:
- depositing a first active layer on a first sheet of current collector material, wherein the first active layer is discontinuous on the first sheet a first hinge region;
- depositing a second active layer on a second sheet of current collector material, wherein the second active layer is discontinuous on the second sheet at a second hinge region;
- and joining the first active layer and the second active layer with an electrolyte layer positioned between the first active layer and the second active layer, wherein the first hinge region and the second hinge region are aligned to form a combined hinge region, wherein the electrolyte layer comprises a first sub-layer and a second sub-layer, and wherein the joining comprises overlapping the first sub-layer and the second sub-layer overlap at the combined hinge region, wherein a portion of the first sub-layer in the first hinge region and a portion of the second sub-layer in the first hinge region comprise matrix material having a first concentration of electrolyte material that is lower than a second concentration of electrolyte material in the first and second sub-layers at the first and second cell regions.
1 more element
A flexible battery structure, the battery structure
- comprising:
- a plurality of battery layers positioned substantially parallel to one another;
- a first cell region;
- a second cell region;
- and
- a hinge region positioned between the first cell region and the second cell region, wherein a first portion of the plurality of battery layers is continuous across the first cell region, the second cell region and the hinge region, and wherein a second portion of the plurality of battery layers is discontinuous at the hinge region, wherein at least one layer selected from the first portion of the plurality of battery layers that is continuous across the first cell region has a length within the hinge region that is greater than a length of the hinge region.
3 more elements
Dependencies are inferred from the claim text.