التفاصيل البيبلوغرافية
| العنوان: |
LITHIUM ION BATTERY ELECTRODE AND METHOD FOR MANUFACTURE OF SAME |
| Document Number: |
20090117471 |
| تاريخ النشر: |
May 7, 2009 |
| Appl. No: |
12/261715 |
| Application Filed: |
October 30, 2008 |
| مستخلص: |
Disclosed is a method for synthesizing a lithium transition metal oxide nanostructure for the cathode material LiCoO2, by using a molten salts/hydroxides flux method, and a device thereof. |
| Inventors: |
GREY, Clare P. (Stony Brook, NY, US); Chen, Hailong (Stony Brook, NY, US) |
| Assignees: |
The Research Foundation of the State University of New York (Albany, NY, US) |
| Claim: |
1. A lithium ion electrode for a rechargeable lithium-ion battery comprising: an electrode formed of a lithium transition metal oxide having adjacent Li and Co layers, separated by oxygen ions, with Li-insertion active surfaces bisecting the layers, wherein the Li-insertion active surfaces contain both lithium and cobalt. |
| Claim: |
2. The electrode of claim 1, further comprising balls having the Li-insertion active surfaces. |
| Claim: |
3. The electrode of claim 2, wherein the balls are crystalline products. |
| Claim: |
4. The electrode of claim 1, wherein metal in the cobalt layer is replaced by a transition metal. |
| Claim: |
5. The electrode of claim 1, wherein metal in the cobalt layer is a replaced by a plurality of different transition metals. |
| Claim: |
6. The electrode of claim 1, wherein the lithium transition metal oxide is synthesized using a low temperature molten flux. |
| Claim: |
7. The electrode of claim 5, wherein the lithium transition metal oxide forms a desert rose morphology, comprising a plurality of intergrown, hyper-branched particles. |
| Claim: |
8. An electrode of a secondary battery having an electrode particle morphology with Li-insertion active surfaces having a desert rose morphology. |
| Claim: |
9. A method for improved rate performance of electrode materials, the method comprising synthesizing of a transition metal oxide in a low temperature flux, which melts at 200° C. or below. |
| Claim: |
10. The method of claim 9, wherein the low temperature molten flux includes a mixture of CsOH.H2O, LiOH and KOH. |
| Claim: |
11. The method of claim 10, wherein the a mixture further includes NaOH, KNO3, LiNO3, CsNO3. |
| Claim: |
12. A method for manufacture of LiCoO2 of use in a cathode of electrode of a secondary battery, the method comprising: heating a mixture of CsOH.H2O, KOH, LiOH, and Co(NO3)2 at a temperature of 180-200° C.; cooling the mixture; obtaining from the mixture, by washing with water and filtration, insoluble products; and drying the mixture at 80° C. |
| Claim: |
13. The method of claim 11, wherein the heating step is performed for twenty-four and forty-eight hours. |
| Claim: |
14. The method of claim 11, wherein a desert rose form of LiCoO2 is created. |
| Claim: |
15. The method of claim 11, wherein the mixture of CsOH.H2O, KOH, LiOH used as the flux is a eutectic mixture. |
| Current U.S. Class: |
42923/195 |
| Current International Class: |
01 |
| رقم الانضمام: |
edspap.20090117471 |
| قاعدة البيانات: |
USPTO Patent Applications |
