Solvent-free electrochemical cells

An electrochemical and battery technology, which is applied in the manufacture of electrochemical generators, non-aqueous electrolyte batteries, and electrolyte batteries, and can solve problems such as sealing and leakage

Pending Publication Date: 2021-10-29
IMPRINT ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Semi-printed batteries typically use liquid electrolytes, creating sealing issues and potentially causing leaks
Furthermore, integrating multiple layers in semi-printed cells has been challenging

Method used

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  • Solvent-free electrochemical cells
  • Solvent-free electrochemical cells
  • Solvent-free electrochemical cells

Examples

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Embodiment Construction

[0044] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts presented. The concepts presented may be practiced without some or all of these specific details. In other instances, well known process operations have not been described in detail so as not to unnecessarily obscure the described concepts. While some concepts will be described in conjunction with specific examples, it should be understood that these examples are not intended to be limiting. On the contrary, it is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the present disclosure as defined by the appended claims.

[0045] Various examples are described herein in the context of printable electrochemical cells in which multivalent metal ions (e.g., Zn 2+ ) are used to carry charge between the positive and negative electrodes in the battery. "Multivalent" is defined her...

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Abstract

Provided are electrochemical cells and methods of manufacturing these cells. An electrochemical cell comprises a positive electrode and an electrolyte layer, printed over the positive electrode. In some examples, each of the positive electrode, electrolyte layer, and negative electrode comprises an ionic liquid enabling ionic transfer. The negative electrode comprises a negative active material layer (e.g., comprising zinc), printed over and directly interfacing the electrolyte layer. The negative electrode also comprises a negative current collector (e.g., copper foil) and a conductive pressure sensitive adhesive layer. The conductive pressure sensitive adhesive layer is disposed between and adhered to, directly interfaces, and provides electronic conductivity between the negative active material layer and the negative current collector. In some examples, the conductive pressure sensitive adhesive layer comprises carbon and / or metal particles (e.g., nickel, copper, indium, and / or silver). Furthermore, the conductive pressure sensitive adhesive layer may comprise an acrylic polymer, encapsulating these particles.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Patent Application No. 16, filed March 1, 2019, under 35 U.S.C. § 119(e), entitled "Solventless Electrochemical Cell with Conductive Pressure-Sensitive Adhesive Attached to Current Collector" The interest of / 290,123 is hereby incorporated by reference in its entirety for all purposes. Background technique [0003] The size reduction and performance improvement of electronic devices and batteries has opened the door to new applications such as low power sensors, wireless transmission, printed electronics industry, etc. While thin-film, lithium-polymer, and semi-printed batteries have been considered in the past, each of these battery types has significant drawbacks that limit its adoption. For example, vapor-deposited thin-film batteries have low storage capacity and power capability due to limitations in the deposition process. Li-polymer batteries are sensitive to operating and environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/193H01M10/04H01M10/0585H01M50/121
CPCH01M4/667H01M4/668H01M2004/021H01M4/661H01M4/663H01M4/38H01M2004/027H01M6/40H01M4/50H01M4/48H01M2300/0045H01M4/0407H01M4/0414H01M4/0404H01M6/162H01M10/05H01M10/0566H01M10/058Y02E60/10Y02P70/50H01M50/121H01M50/105H01M4/134H01M4/1395H01M4/42H01M4/366H01M4/626H01M4/625H01M10/0585
Inventor 郑强克里斯汀·何杰西·史密斯曼
Owner IMPRINT ENERGY
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