Claims
- 1. An electrochemical generator comprising an anode, a cathode, and an electrolyte, wherein the anode and/or the cathode comprises a carbonaceous material obtained by a process comprising:suspending a carbonaceous material containing carboxyl, amine and/or hydroxyl functions on its surface in a solution comprising at least one polymer and a solvent which dissolves the polymer, said polymer containing at least one carboxyl, amine and/or hydroxyl function, and treating the solution thus obtained under conditions promoting a dehydration reaction between at least one carboxyl function, and at least one amine and/or hydroxyl function, thereby grafting at least one said polymer onto said carbonaceous material by means of an ester or amide bond.
- 2. An electrochemical generator according to claim 1, wherein the electrochemical generator is a Li-polymer or Li-Ion type.
- 3. The electrochemical generator according to claim 2, wherein said polymer is a hydrophilic polymer selected from the group consisting of polyoxyalkylene monoamines, polyoxyalkylene monoalcohols, and polyalkane diols.
- 4. The electrochemical generator according to claim 3, wherein the electrochemical generator further comprises a current collector comprising a metal selected from the group consisting of aluminium, nickel, zinc, lithium or copper.
- 5. The electrochemical generator according to claim 1, wherein the electrochemical generator is a primary Zn/MnO2 generator.
- 6. The electrochemical generator according to claim 5, wherein said polymer is a hydrophilic polymer selected from the group consisting of polyoxyalkylene monoamines, polyoxyalkylene monoalcohols, and polyalkane diols.
- 7. The electrochemical generator according to claim 5, wherein the electrochemical generator further comprises a current collector comprising a metal selected from the group consisting of aluminium, nickel, zinc, lithium or copper.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2 194 127 |
Dec 1996 |
CA |
|
2 199 231 |
Mar 1997 |
CA |
|
Parent Case Info
This application is a division of application Ser. No. 09/125,798, filed on Dec. 12, 1998, which was originally filed as PCT international application No. PCT/CA97/01008, filed Dec. 30, 1997.
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