US 11,456,459 B2Granted

Plating technique for electrode

AssigneeSion Power Corporation

InventorsJohn D. Affinito, Chariclea Scordilis-Kelley, Yuriy V. Mikhaylik

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Abstract

Articles and methods for forming protected electrodes for use in electrochemical cells, including those for use in rechargeable lithium batteries, are provided. In some embodiments, the articles and methods involve an electrode that does not include an electroactive layer, but includes a current collector and a protective structure positioned directly adjacent the current collector, or separated from the current collector by one or more thin layers. Lithium ions may be transported across the protective structure to form an electroactive layer between the current collector and the protective structure. In some embodiments, an anisotropic force may be applied to the electrode to facilitate formation of the electroactive layer.

Claims21

Dependent claims

An article, comprising:

a current collector;
a protective structure separated from the current collector by one or more intervening layers, the one or more intervening layers together having a total thickness of less than 2 microns, wherein the protective structure is non-electroactive and is conductive to ions of an alkali metal;
a layer of alkali metal positioned on a side of the protective structure opposite the current collector;
a cathode;
and
an electrolyte positioned between the protective structure and the cathode;
wherein lithium metal is present in at least one of the one or more intervening layers, and wherein an amount of lithium present in the one or more intervening layers is less than 10% of an amount of lithium metal sufficient to participate in a full discharge of the article.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/361,628Filed 28 Nov 2016 · division
Priority: 17 Jun 2011
Published: US 2017/0141402 A118 May 2017
Granted: 27 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

H01M 4/628
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers: inhibitors, e.g. gassing inhibitors, corrosion inhibitors
H01M 4/134
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof: electrodes based on…
H01M 4/1395
Processes of manufacture: of electrodes based on metals, Si or alloys
H01M 4/366
Composites: as layered products

Family

Application61/498,339Us provisional application · filed 17 Jun 2011
Application13/524,662Parent of this division · filed 15 Jun 2012
US 2017/0141402 A1Pre-grant publication · published 18 May 2017
US 9,548,492 B2Parent of this division
US 2013/0017441 A1Published application
US 11,456,459 B2This patent

From the US filing history. Foreign family members aren’t listed.