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US 11,081,737 B2Granted
Getter for use with electrochemical cells, devices including the getter, and method of forming same
AssigneeViking Power Systems Pte. Ltd.
InventorsCraig Downie, Robert Ellis Doe, David Eaglesham
Life of this patent
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Abstract
An electrochemical cell including a getter material, a battery including the electrochemical cell, and methods of forming the electrochemical cell and battery are disclosed.
Claims20
An electrochemical device, comprising:
- a first electrode and a second electrode;
- a separator interposed between the first electrode and the second electrode;
- a non-aqueous fluid electrolyte in contact with the separator, the first electrode, and the second electrode;
- a composite getter including one or more first gas getter materials dispersed in the non-aqueous fluid electrolyte and deployed to adsorb one or more gases that the electrochemical device produces during operational cycling of the electrochemical device;
- and
- one or more second gas getter materials,
- wherein the non-aqueous fluid electrolyte comprises one or more non-aqueous solvents and one or more salts that do not readily hydrolyze in the one or more non-aqueous solvents;
- and
- wherein the one or more second gas getter materials are in direct contact with, separate and apart from the non-aqueous fluid electrolyte, one or more of the first electrode, the second electrode, and the separator, wherein the one or more second gas getter materials are deployed to adsorb one or more gases that the electrochemical device produces during operational cycling of the electrochemical device.
6 more elements
An electrochemical device, comprising:
- a first electrode and a second electrode;
- a separator interposed between the first electrode and the second electrode;
- a non-aqueous fluid electrolyte in contact with the separator, the first electrode, and the second electrode;
- and
- a composite getter including one or more first gas getter materials dispersed in the non-aqueous fluid electrolyte and deployed to adsorb one or more gases that the electrochemical device produces during operational cycling of the electrochemical device,
- wherein the non-aqueous fluid electrolyte comprises one or more non-aqueous solvents and one or more salts that do not readily hydrolyze in the one or more non-aqueous solvents,
- wherein the one or more gas getter materials comprise one or more compounds selected from the group consisting of:
- LiOH, Li2O, NaOH, Na2O, KOH, K2O, Mg(OH)2, Ca(OH)2, and CaO, in any combination, and
- wherein the electrochemical device includes packaging material and one or more second gas getter materials separate and apart from the one or more first gas getter materials, wherein the one or more second gas getter materials are incorporated into a coating applied to the packaging material.
6 more elements
Dependencies are inferred from the claim text.