Hybrid anodes for energy storage devices

Patent metadata

Field	Value
Publication number	US-10673069-B2
Application number	US-201213532206-A
Country	US
Kind code	B2
Filing date	Jun 25, 2012
Priority date	Jun 25, 2012
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

Energy storage devices having hybrid anodes can address at least the problems of active material consumption and anode passivation that can be characteristic of traditional batteries. The energy storage devices each have a cathode separated from the hybrid anode by a separator. The hybrid anode includes a carbon electrode connected to a metal electrode, thereby resulting in an equipotential between the carbon and metal electrodes.

First claim

We claim:

1. A cell consisting of an electrode arrangement, wherein the electrode arrangement consists of a cathode separated from a hybrid anode by a first separator, the hybrid anode consisting of a single carbon electrode connected to a metal electrode comprising Li, an anode separator between the single carbon electrode and the metal electrode, and a single current collector, wherein the single current collector contacts the single carbon electrode, thereby resulting in an equipotential between the carbon and metal electrodes, wherein the cathode comprises a lithium intercalation material, and the single carbon electrode comprises lithium ions intercalated therein, deposited thereon, or both.

2. The cell of claim 1 , wherein the single carbon electrode is located between the first separator and the anode separator.

3. The cell of claim 1 , wherein the carbon electrode comprises a carbonaceous material selected from the group consisting of graphite, hard carbon, carbon black, carbon fibers, graphene, and combinations thereof.

4. The cell of claim 1 wherein the lithium intercalation material is selected from the group consisting of Li 4-x M x Ti 5 O 12 (M=Mg, Al, Ba, Sr, or Ta; 0≤x≤1), MnO 2 , V 2 O 5 , V 6 O 13 , LiV 3 O 8 , LiM C1 x M C2 1-x PO 4 (M C1 or M C2 Fe, Mn, Ni, Co, Cr, or Ti; 0≤x≤1), Li 3 V 2-x M x (PO 4 ) 3 (M=Cr, Co, Fe, Mg, Y, Ti, Nb, or Ce; 0≤x≤1), LiVPO 4 F, LiM C1 x M C2 1-x O 2 ((M C1 or M C2 Fe, Mn, Ni, Co, Cr, Ti, Mg, Al; 0≤x≤1), LiM C1 x M C2 y M C3 1-x-y O 2 ((M C1 , M C2 , or M C3 =Fe, Mn, Ni, Co, Cr, Ti, Mg, or Al; 0≤x≤1; 0≤y≤1), LiMn 2-y X y O 4 (X=Cr, Al, or Fe, 0≤y≤1), LiNi 0.5-y X y Mn 1.5 O 4 (X=Fe, Cr, Zn, Al, Mg, Ga, V, or Cu; 0≤y≤0.5), xLi 2 MnO 3 .(1-x)LiM C1 y M C2 z M C3 1-y-z O 2 (M C1 , M C2 , or M C3 Mn, Ni, Co, Cr, Fe, or mixture of; x=0.3-0.5; y≤0.5; z≤0.5), Li 2 MSiO 4 (M=Mn, Fe, or Co), Li 2 MSO 4 (M=Mn, Fe, or Co), LiMSO 4 F (Fe, Mn, or Co), Li 2-x (Fe 1-y Mn y )P 2 O 7 (0≤y≤1), Cr 3 O 8 , Cr 2 O 5 , and combinations thereof.

5. The cell of claim 1 , wherein the carbon electrode further comprises metalated carbon during charging and discharging of the device.

6. The cell of claim 1 further comprising lithiated carbon at the single carbon electrode.

7. The cell of claim 4 , wherein the carbon electrode comprises a carbonaceous material selected from the group consisting of graphite, hard carbon, carbon black, carbon fibers, graphene, and combinations thereof.

8. The cell of claim 6 , wherein the lithiated carbon comprises LiC 6 .

9. The cell of claim 1 , wherein the carbon electrode comprises graphite and lithium ions intercalated therein, deposited thereon, or both, and the lithium intercalation material is selected from the group consisting of Li 4-x M x Ti 5 O 12 (M=Mg, Al, Ba, Sr, or Ta; 0≤x≤1), LiM C1 x M C2 1-x PO 4 (M C1 or M C2 =Fe, Mn, Ni, Co, Cr, or Ti; 0≤x≤1), Li 3 V 2-x M x (PO 4 ) 3 (M=Cr, Co, Fe, Mg, Y, Ti, Nb, or Ce; 0≤x≤1), LiVPO 4 F, LiM C1 x M C2 1-x O 2 ((M C1 or M C2 =Fe, Mn, Ni, Co, Cr, Ti, Mg, Al; 0≤x≤1), Li 2 MSiO 4 (M=Mn, Fe, or Co), Li 2 MSO 4 (M=Mn, Fe, or Co), LiMSO 4 F (Fe, Mn, or Co), Li 2-x (Fe 1-y Mn y )P 2 O 7 (0≤y≤1), Cr 3 O 8 , Cr 2 O 5 , and combinations thereof.

10. The cell of claim 9 , wherein the lithium intercalation material is LiFePO 4 or LiFeSO 4 F.

11. A lithium-ion energy storage device comprising a cathode separated from a hybrid anode by a first separator, the hybrid anode comprising a carbon electrode connected to a metal electrode comprising Li and an anode separator between the carbon electrode and the metal electrode, and a single current collector, wherein the single current collector contacts the single carbon electrode, thereby resulting in an equipotential between the carbon and metal electrodes, wherein the cathode comprises a lithium intercalation material selected from the group consisting of Li 4-x M x Ti 5 O 12 (M=Mg, Al, Ba, Sr, or Ta; 0≤x≤1), LiM C1 x M C2 1-x PO 4 (M C1 or M C2 =Fe, Mn, Ni, Co, Cr, or Ti; 0≤x≤1), Li 3 V 2-x M x (PO 4 ) 3 =Cr, Co, Fe, Mg, Y, Ti, Nb, or Ce; 0≤x≤1), LiVPO 4 F, LiM C1 x M C2 1-x O 2 ((M C1 or M C2 Fe, Mn, Ni, Co, Cr, Ti, Mg, Al; 0≤x≤1), Li 2 MSiO 4 (M=Mn, Fe, or Co), Li 2 MSO 4 (M=Mn, Fe, or Co), LiMSO 4 F (Fe, Mn, or Co), Li 2-x (Fe 1-y Mn y )P 2 O 7 (0≤y≤1), Cr 3 O 8 , Cr 2 O 5 , and combinations thereof, and the carbon electrode comprises graphite and lithium ions intercalated therein, deposited thereon, or both.

12. The device of claim 11 , wherein the lithium intercalation material is LiFePO 4 or LiFeSO 4 F.

Assignees

• Liu Jun
• Xiao Jie
• Huang Cheng
• Battelle Memorial Institute

Inventors

• Liu Jun
• Xiao Jie
• Huang Cheng

Classifications

• H01M4/13 Primary

  Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title

• H01M4/405

  Alloys based on lithium · CPC title

• H01M4/485

  of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title

• H01M4/5815

  Sulfides · CPC title

• Y02T10/7011

  Cross-Sectional Technologies · mapped topic