ELECTRODE FOR A SECONDARY LITHIUM-ION BATTERY

• US 20130059204A1
• Filed: 01/28/2011
• Published: 03/07/2013
• Est. Priority Date: 01/28/2010
• Status: Abandoned Application

• Current Assignee: Sued-Chemie IP GmbH & Co., KG
• Original Assignee: Sued-Chemie IP GmbH & Co., KG
• Inventors: Holzapfel, Michael, Tran, Nicolas
• Application Number:
  US13/575,708
• Publication Number:
  US 20130059204A1
• Time in Patent Office: Days
• US Class Current: 429/231.1
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 4/131 Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• CPC Class Codes: H01M 4/136 Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• CPC Class Codes: H01M 4/366 as layered products
• CPC Class Codes: H01M 4/485 of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy H01M4/505, H01M4/525 take precedence
• CPC Class Codes: H01M 4/5825 Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
• CPC Class Codes: H01M 4/624 Electric conductive fillers
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An electrode, free of added conductive agent, for a secondary lithium-ion battery with a lithium-metal-oxygen compound as active material, and a secondary lithium-ion battery which contains the electrode.

Claims

1. Electrode, free of added conductive agent, with a lithium-metal-oxygen compound as active material.

2. Electrode according to claim 1, further containing a binder.

3. Electrode according to claim 2 with a proportion of the active material of ≧

94 wt.-%.

4. Electrode according to claim 3, wherein the active material is selected from the group consisting of doped or non-doped lithium titanates, lithium metal phosphates, and lithium metal vanadates.

5. Electrode according to claim 4, wherein particles of the active material have a carbon coating.

6. Electrode according to claim 4, wherein the active material is a doped or non-doped lithium titanate.

7. Electrode according to claim 4, wherein the active material is a doped or non-doped lithium metal phosphate.

8. Electrode according to claim 7, wherein the doped or non-doped lithium metal phosphate has an ordered or modified olivine structure.

9. Electrode according to claim 8 with a doped or non-doped lithium metal phosphate of the formula

Li_xN_yM_1-yPO₄,

wherein N is a metal selected from the group Mg, Zn, Cu, Ti, Zr, Al, Ga, V, Sn, B or mixtures thereof;

M is a metal selected from the group Fe, Mn, Co, Ni, Cr, Cu, Ti, Ru;

and with 0<

x≦

1 and 0≦

y<

1.

10. Electrode according to claim 7, further containing a second lithium-metal-oxygen compound, different from the first, selected from the group consisting of doped or non-doped lithium metal oxides, lithium metal phosphates, lithium metal vanadates, and mixtures thereof.

11. Electrode according to claim 10, wherein the second lithium-metal-oxygen compound is selected from the group consisting of doped or non-doped lithium manganese oxide, lithium cobalt oxide, lithium iron manganese phosphate, and lithium manganese phosphate.

12. Secondary lithium-ion battery with an anode, a cathode and an electrolyte containing an electrode according to claim 1.

13. Secondary lithium-ion battery according to claim 12 with doped or non-doped lithium titanate as active material of the anode.

14. Secondary lithium-ion battery according to claim 12 with doped or non-doped lithium metal phosphate as an active material of the cathode.