ELECTROCHEMICAL CELLS COMPRISING POROUS STRUCTURES COMPRISING SULFUR
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Mar 31, 2011
app pub date -
Aug 24, 2010
filing date -
Aug 28, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to the use of porous structures comprising sulfur in electrochemical cells. Such materials may be useful, for example, in forming one or more electrodes in an electrochemical cell. For example, the systems and methods described herein may comprise the use of an electrode comprising a conductive porous support structure and a plurality of particles comprising sulfur (e.g., as an active species) substantially contained within the pores of the support structure. The inventors have unexpectedly discovered that, in some embodiments, the sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can be tailored such that the contact between the electrolyte and the sulfur is enhanced, while the electrical conductivity and structural integrity of the electrode are maintained at sufficiently high levels to allow for effective operation of the cell. Also, the sizes of the pores within the porous support structures and/or the sizes of the particles within the pores can be selected such that any suitable ratio of sulfur to support material can be achieved while maintaining mechanical stability in the electrode. The inventors have also unexpectedly discovered that the use of porous support structures comprising certain materials (e.g., metals such as nickel) can lead to relatively large increases in cell performance. In some embodiments, methods for forming sulfur particles within pores of a porous support structure allow for a desired relationship between the particle size and pore size. The sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can also be tailored such that the resulting electrode is able to withstand the application of an anisotropic force, while maintaining the structural integrity of the electrode.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SION POWER CORPORATION | 2900 E ELVIRA ROAD TUCSON AS 85756 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Affinito, John D | Tucson, US | 77 | 7075 |
# of filed Patents : 77 Total Citations : 7075 | |||
Campbell, Christopher TS | Tucson, US | 12 | 773 |
# of filed Patents : 12 Total Citations : 773 | |||
Kovalev, Igor | Vail, US | 21 | 1107 |
# of filed Patents : 21 Total Citations : 1107 | |||
Mikhaylik, Yuriy V | Tucson, US | 160 | 10219 |
# of filed Patents : 160 Total Citations : 10219 | |||
Oleshko, Vladimir | Tucson, US | 3 | 224 |
# of filed Patents : 3 Total Citations : 224 | |||
Scordilis-Kelley, Chariclea | Tucson, US | 94 | 4103 |
# of filed Patents : 94 Total Citations : 4103 |
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Patent Citation Ranking
- 112 Citation Count
- H01M Class
- 99.24 % this patent is cited more than
- 14 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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