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High-energy-density deformable batteries

An energy storage unit, energy storage device technology, applied in the direction of batteries, lithium batteries, battery electrodes, etc., can solve problems such as unsatisfactory energy density

Pending Publication Date: 2021-01-12
THE TRUSTEES OF COLUMBIA UNIV IN THE CITY OF NEW YORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Buckled carbon structures (e.g., carbon nanofibers, carbon nanotubes) have also shown stretchability, but the corresponding energy densities are still unsatisfactory

Method used

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Embodiment Construction

[0026] now refer to Figure 1A , some aspects of the disclosed subject matter include an energy storage device 100 having an axial structure 102 . In some embodiments, energy storage device 100 includes two or more rigid energy storage cells 104 arranged along axial structure 102 . In some embodiments, energy storage device 100 includes a plurality of energy storage units 104 . In some embodiments, a conductive flexible member 106 separates adjacent rigid energy storage units 104 . now refer to Figure 1B , in some embodiments, the energy storage device 100 is configured such that L / a is between 0.30 and 1.0, where L is the length of the conductive flexible member 106, and a is the rigid energy storage unit 104 adjacent to the conductive flexible member energy storage length.

[0027] now refer to Figure 1C , in some embodiments, the axial structure 102 includes a plurality of layers 108 . In some embodiments, the plurality of layers includes an anode layer 110, a cathod...

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Abstract

An energy storage device is disclosed that includes an axial structure with two or more rigid energy storage units and conductive flexible components separating adjacent rigid energy storage units. The rigid energy storage units include a plurality of folded layers, including an anode layer, a cathode layer, a first current collector layer, a second current collector layer, one or more separator layers, and one or more tape layers. The adjacent rigid energy storage units are produced by folding the plurality of layers one or more times onto themselves at a plurality of locations along the axial structure. The axial structure is then sealed in an aluminized casing along with an electrolyte material. The energy storage device exhibits high energy density, high foldability, and excellent electrochemical performances by virtue of the folded rigid energy storage segments connected by the flexible components. The conductive flexible component functions in a similar way as the soft marrow between vertebrae in the spine, providing excellent overall flexibility.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application Nos. 62 / 640,770, filed March 9, 2018; 62 / 770,395, filed November 21, 2018; 62 / 772,422, filed November 28, 2018 ; 62 / 772,432, filed November 28, 2018; and 62 / 773,673, filed November 30, 2018, which are incorporated by reference as if disclosed herein in their entirety. [0003] Statement Regarding Federally Sponsored Research or Development [0004] This invention was made with government support under 1420634 awarded by the National Science Foundation. The government has certain rights in this invention. Background technique [0005] In recent years, the rapid development of wearable electronics such as smart watches has increased the demand for high-performance, seamlessly compatible flexible batteries. They can be used in almost every aspect of life, such as healthcare, military, displays, and more. Current flexible battery designs are insufficient to handle the ...

Claims

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Application Information

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IPC IPC(8): H01M10/04H01G11/10H01G11/72H01G11/76H01G11/78H01G11/84H01M50/134H01M50/514H01M50/414H01M10/052H01M50/119H01M50/136H01M50/417H01M50/503H01M50/522H01M50/526
CPCH01G11/10H01G11/76H01M10/052H01G11/78H01G11/72H01G11/84H01M4/661H01M4/13H01M10/058H01M4/382H01M4/587H01G11/06Y02E60/10Y02P70/50H01M50/417H01M50/522H01M50/526H01M50/136H01M50/503H01M50/119H01M4/133H01M4/131H01M4/136H01M10/0525H01M2220/30
Inventor 杨远钱果裕陈曦廖湘标石昌民王天洋
Owner THE TRUSTEES OF COLUMBIA UNIV IN THE CITY OF NEW YORK
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