US2015318547A1PendingUtilityA1

Copper fluoride based nanocomposites as electrode materials

Assignee: UNIV RUTGERSPriority: Oct 1, 2002Filed: May 8, 2015Published: Nov 5, 2015

Est. expiryOct 1, 2022(expired)· nominal 20-yr term from priority

Inventors:Glenn G. Amatucci Fadwa Badway

H01M 4/582H01M 2004/021C01G 3/04Y10T428/2982H01M 4/381H01M 4/5835Y02E60/10H01M 4/626H01M 4/58H01M 2004/028H01M 4/56H01M 4/625H01M 4/54C01P 2002/77H01M 4/50H01M 4/624H01M 4/48H01M 4/38H01M 4/364H01M 4/52H01M 10/0562H01M 4/382

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References

Claims

Abstract

The present invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Claims

exact text as granted — not AI-modified

1 . A nanocomposite comprising a copper fluoride compound, wherein the nanocomposite composition is formed of crystallites of about 1 nm to about 100 nm in diameter. 
     
     
         2 . The nanocomposite according to  claim 1 , wherein said nanocomposite demonstrates a specific capacity of about 100 mAh/g to about 600 mAh/g at a voltage of about 2 volts to about 4 volts when compared to a Li/Li+ reference potential. 
     
     
         3 . The nanocomposite according to  claim 1 , wherein the copper fluoride compound comprises CuF 2 . 
     
     
         4 . The nanocomposite according to  claim 1 , further comprising a metal. 
     
     
         5 . The nanocomposite according to  claim 4 , wherein the metal is selected from the group consisting essentially of Fe, Co, Ni, Mn, V, Mo, Pb, Sb, Bi, Nb, Zn, Sn, Ag and Cr. 
     
     
         6 . The nanocomposite according to  claim 1 , further comprising carbon. 
     
     
         7 . (canceled) 
     
     
         8 . The nanocomposite according to  claim 1 , further comprising oxygen. 
     
     
         9 . The nanocomposite according to  claim 1 , wherein the copper fluoride compound comprises Cu x F z O w , wherein z&gt;w and w&gt;0. 
     
     
         10 . The nanocomposite according to  claim 1 , wherein the copper fluoride compound comprises Cu x Me y F z O w , wherein Me is a metal and x+z&gt;y+w and w&gt;0. 
     
     
         11 . The nanocomposite according to  claim 10 , wherein Me is a transition metal. 
     
     
         12 . The nanocomposite according to  claim 10 , wherein Me is selected from the group consisting essentially of Fe, Co, Ni, Mn, V, Mo, Pb, Sb, Bi, Nb, Sn, Zn, Ag and Cr. 
     
     
         13 . The nanocomposite according to  claim 1 , wherein the copper fluoride compound comprises a compound of the formula Cu x Me y F z O w , wherein Me is a transition metal and x+z&gt;y+w and w&gt;0. 
     
     
         14 . (canceled) 
     
     
         15 . The nanocomposite of  claim 1 , wherein the copper fluoride compound comprises a compound of the formula Cu x Me y F z O w , wherein x+z&gt;y+w and w&gt;0, and wherein Me is selected from the group consisting essentially of Fe, Co, Ni, Mn, V, Mo, Pb, Sb, Bi, Nb, Zn, Sn, Ag and Cr. 
     
     
         16 . (canceled) 
     
     
         17 . The nanocomposite according to  claim 1 , further comprising a conducting matrix. 
     
     
         18 . (canceled) 
     
     
         19 . (canceled) 
     
     
         20 - 26 . (canceled) 
     
     
         27 . A compound comprising copper fluoride, wherein the compound comprises an x-ray diffraction lattice parameter, a=3.25 Å±0.2 Å; b=4.585 Å±0.2 Å; c=4.585 Å±0.2 Å, B=84°±5°. 
     
     
         28 . (canceled) 
     
     
         29 . An electrochemical cell comprising:
 a negative electrode;   a positive electrode comprising the nanocomposite of  claim 1 ; and   a separator disposed between the negative and positive electrodes.   
     
     
         30 - 32 . (canceled) 
     
     
         33 . The cell according to  claim 29 , wherein the nanocomposite comprises CuF 2 . 
     
     
         34 . The cell according to  claim 29 , wherein the nanocomposite comprises a composition comprising greater than 50 weight % CuF 2 , and wherein the CuF 2  exhibits X-ray diffraction peaks of (200) and (022) with a 2θ separation of less than 0.8 degree. 
     
     
         35 . The cell according to  claim 29 , wherein the nanocomposite further comprises a metal. 
     
     
         36 - 52 . (canceled) 
     
     
         53 . The nanocomposite of  claim 1 , wherein the copper fluoride compound includes CuF 2  and the CuF 2  constitutes greater than 50 weight % of the nanocomposite, and wherein the nanocomposite has X-ray diffraction peaks of (200) and (022) with a 2θ separation less than 0.8 degree, and wherein the nanocomposite demonstrates a specific capacity of about 100 mAh/g to about 600 mAh/g at a voltage of about 2 volts to about 4 volts when compared to a Li/Li+ reference potential. 
     
     
         54 . The composition of  claim 1 , wherein the composition is present in an electrode of a rechargeable battery.

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