HIGH ENERGY HIGH POWER ELECTRODES AND BATTERIES
First Claim
1. A subassembly for use in an electrochemical device comprising(a) a first electrode and(b) a separator or a first current collector or both,wherein the first electrode is bonded to the separator or the first current collector or both.
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Accused Products
Abstract
Subassemblies for use in an electrochemical device are provided, as are processes for preparing the subassemblies and electrochemical cells incorporating the subassemblies. In some embodiments, the subassemblies include (a) a first electrode and (b) a separator or a first current collector or both. The first electrode is bonded to the separator or the first current collector or both. In some embodiments, the subassemblies further include a second electrode and a second current collector. In some embodiments, the electrodes or separators are sintered. Bipolar cells are also provided, including a plurality of stacked electrochemical cells that are joined in series. The positive electrode and the negative electrode of each stack include a sintered electrode.
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Citations
91 Claims
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1. A subassembly for use in an electrochemical device comprising
(a) a first electrode and (b) a separator or a first current collector or both, wherein the first electrode is bonded to the separator or the first current collector or both.
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16. A subassembly for use in an electrochemical device comprising
(a) a first sintered electrode and (b) a sintered separator or a first current collector or both, wherein the first sintered electrode is bonded to the sintered separator or the first current collector or both.
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30. A subassembly for use in an electrochemical device comprising
(a) a first electrode and (b) a separator or a first current collector or both, wherein the subassembly is produced by (i) combining the first electrode with the separator or the first current collector or both and (ii) heating the first electrode and the separator or the first current collector or both under conditions effective to form a sintered sub-assembly.
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47. A subassembly for use in an electrochemical device comprising
(a) a first sintered electrode and (b) a sintered separator or a first current collector or both, wherein the subassembly is produced by (i) combining the first sintered electrode with the sintered separator or the first current collector or both, and (ii) heating the first sintered electrode and the sintered separator or the first current collector or both under conditions effective to form a sintered sub-assembly.
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48. The subassembly of claim 48, wherein the first sintered electrode is thermally bonded to the sintered separator or the first current collector.
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61. An electrochemical device comprising:
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(a) a positive electrode in electronic contact with a positive electrode current collector, the positive current collector in electrical connection with an external circuit; (b) a negative electrode in electronic contact with a negative electrode current collector, the negative current collector in electrical connection with an external circuit; (c) a separator positioned between the positive electrode and the negative electrode; and (d) an electrolyte in ionic contact with the positive and negative electrodes;
wherein the positive electrode or the negative electrode and the separator comprise a sintered subassembly. - View Dependent Claims (62, 63, 75, 76)
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64. A process for preparing subassembly for use in an electrochemical device comprising:
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(a) combining a first electrode with a separator or a first current collector or both; and (b) heating the first electrode and the separator or the first current collector under conditions effective to form a sintered subassembly. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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77. A biopolar cell, comprising a plurality of stacked electrochemical cells, wherein the electrochemical cells are joined in series and wherein each of said stacked electrochemical cells comprises:
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(a) a positive electrode in electronic contact with a positive electrode current collector, the positive current collector in electrical connection with an external circuit; (b) a negative electrode in electronic contact with a negative electrode current collector, the negative current collector in electrical connection with an external circuit; (c) a separator positioned between the positive electrode and the negative electrode; and (d) an electrolyte in ionic contact with the positive and negative electrodes;
wherein the positive electrode and the negative electrode of each stack comprise a sintered electrode. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91)
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Specification