Diffusion barrier films enabling the stability of lithium

Pending Publication Date: 2021-07-15
APPLIED MATERIALS INC
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  • Summary
  • Abstract
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Benefits of technology

[0005]Implementations described herein generally relate to metal electrodes, more specifically lithium-containing anodes, high performance electrochemical devices, such as secondary batteries, including the aforementioned lithium-containing electrodes, and methods for fabricating the same. In one implementation, an anode electrode is provided. The anode electrode comprises a copper foil. The anode electrode further comprises a first diffusion barrier layer formed on the copper foil. The first diffusion barrier layer comprises titanium (Ti), molybd

Problems solved by technology

Traditional lead/sulfuric acid batteries often lack the capacitance and are often inadequately cyclable for these growing applications.
However, the use of graphite, which, in the charged state can be charged up to the limit composition LiCe, results in a much lower capacitance, in comparison wit

Method used

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  • Diffusion barrier films enabling the stability of lithium
  • Diffusion barrier films enabling the stability of lithium
  • Diffusion barrier films enabling the stability of lithium

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Embodiment Construction

[0015]The following disclosure describes anode electrodes, high performance electrochemical cells and batteries including the aforementioned anode electrodes, and methods for fabricating the same. Certain details are set forth in the following description and in FIGS. 1-5 to provide a thorough understanding of various implementations of the disclosure. Other details describing well-known structures and systems often associated with electrochemical cells and batteries are not set forth in the following disclosure to avoid unnecessarily obscuring the description of the various implementations.

[0016]Many of the details, dimensions, angles and other features shown in the Figures are merely illustrative of particular implementations. Accordingly, other implementations can have other details, components, dimensions, angles and features without departing from the spirit or scope of the present disclosure. In addition, further implementations of the disclosure can be practiced without several

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Abstract

Lithium-containing anodes, high performance electrochemical devices, such as secondary batteries, including the aforementioned lithium-containing electrodes, and methods for fabricating the same are provided. In one implementation, an anode electrode is provided. The anode electrode comprises a first diffusion barrier layer formed on a copper foil. The first diffusion barrier layer comprises titanium (Ti), molybdenum (Mo), tungsten (W), zirconium (Zr), hafnium (H), niobium (Nb), tantalum (Ta), or combinations thereof. The anode electrode further comprises a wetting layer formed on the first diffusion barrier layer. The wetting layer is selected from silicon (Si), tin (Sn), aluminum (Al), germanium (Ge), antimony (Sb), lead (Pb), bismuth (Bi), gallium (Ga), indium (In), zinc (Zn), cadmium (Cd), magnesium (Mg), oxides thereof, nitrides thereof, or combinations thereof. The anode electrode further comprises a lithium metal layer formed on the wetting layer.

Description

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Claims

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Application Information

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Owner APPLIED MATERIALS INC
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