Battery structures, self-organizing structures and related methods
View Patent ↗An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.
1. A method for producing a bipolar device comprising:
providing a medium, a first electroactive material and a second electroactive material, wherein the medium is electronically-insulating and ionically-conductive;
combining the first and second electroactive materials and the medium, wherein the first electroactive material has lower density than the second electroactive material and the first and the second electroactive materials float or sink at a different rate in the medium;
segregating at least a portion of the first electroactive material into a first spatial region that is essentially free of the second electroactive material to form a first network of electronically-connected first electroactive material; and
segregating at least a portion of the second electroactive material into a second spatial region that is essentially free of the first electroactive material to form a second network of electronically-connected second electroactive material.
2. The method of claim 1 , wherein segregating at least a portion of the first electroactive material comprises allowing at least a portion of the first electroactive material to float to the first spatial region, and wherein the first spatial region is above the second spatial region.
3. The method of claim 1 , wherein segregating at least a portion of the first electroactive material comprises allowing at least a portion of the first electroactive material to sink to the first spatial region, and wherein the first spatial region is above the second spatial region.
4. The method of claim 1 , wherein segregating at least a portion of the second electroactive material comprises allowing at least a portion of the second electroactive material to float to the second spatial region, and wherein the second spatial region is below the first spatial region.
5. The method of claim 1 , wherein segregating at least a portion of the second electroactive material comprises allowing at least a portion of the second electroactive material to sink to the second spatial region, and wherein the second spatial region is below the first spatial region.
6. The method of claim 1 , wherein the first electroactive material is in the form of particles of a first type.
7. The method of claim 1 , wherein the second electroactive material is in the form of particles of a second type.
8. The method of claim 1 , further comprising providing a first current collector in electronic communication with the first network and a second current collector in electronic communication with the second network.
9. The method of claim 1 , wherein the first electroactive material comprises at least one of LiCoO 2 , LiCoO 2 doped with Mg, LiNiO 2 , LiMn 2 O 4 , LiMnO 2 , LiMnO 2 doped with Al, Li(Fe,Mn)PO 4 , LiFePO 4 , LiFePO 4 doped with one or more of Mg, Al, Ti, Nb, Ta, Zr, or W, Li 2 Fe 2 (SO 4 ) 3 , V 2 O 5 , V 6 O 11 , C, amorphous carbon, graphite, mesocarbon microbeads, Li, LiAl, Li 9 Al 4 , Li 3 Al, Zn, LiZn, Ag, LiAg, Li 10 Ag 3 , B, Li 5 B 4 , Li 7 B 6 , Ge, Si, Li 12 Si 7 , Li 21 Si 8 , Li 13 Si 4 , Li 21 Si 5 , Sn, Li 5 Sn 2 , Li 13 Sn 5 , Li 7 Sn 2 , Li 22 Sn 5 , Sb, Li 2 Sb, Li 3 Sb, Bi, LiBi, Li 3 Bi, SnO 2 , SnO, MnO, Mn 2 O 3 , MnO 2 , Mn 3 O 4 , CoO, NiO, FeO, LiFe 2 O 4 , TiO 2 , LiTi 2 O 4 , glass with a Sn—B—P—O compound and mesocarbon microbeads coated with at least one of poly(o-methoxyaniline), poly(3-octylthiophene), and poly(vinylidene fluoride).
10. The method of claim 1 , wherein the second electroactive material comprise at least one of LiCoO 2 , LiCoO 2 doped with Mg, LiNiO 2 , LiMn 2 O 4 , LiMnO 2 , LiMnO 2 doped with Al, Li(Fe,Mn)PO 4 , LiFePO 4 , LiFePO 4 doped with one or more of Mg, Al, Ti, Nb, Ta, Zr, or W, Li 2 Fe 2 (SO 4 ) 3 , V 2 O 5 , V 6 O 11 , C, amorphous carbon, graphite, mesocarbon microbeads, Li, LiAl, Li 9 Al 4 , Li 3 Al; Zn, LiZn, Ag, LiAg, Li 10 Ag 3 , B, Li 5 B 4 , Li 7 B 6 , Ge, Si, Li 12 Si 7 , Li 21 Si 8 , Li 13 Si 4 , Li 21 Si 5 , Sn, Li 5 Sn 2 , Li 13 Sn 5 , Li 7 Sn 2 , Li 22 Sn 5 , Sb, Li 2 Sb, Li 3 Sb, Bi, LiBi, Li 3 Bi, SnO 2 , SnO, MnO, Mn 2 O 3 , MnO 2 , Mn 3 O 4 , CoO, NiO, FeO, LiFe 2 O 4 , TiO 2 , LiTi 2 O 4 , glass with a Sn—B—P—O compound and mesocarbon microbeads coated with at least one of poly(o-methoxyaniline), poly(3-octylthiophene), and poly(vinylidene fluoride).
11. The method of claim 1 , wherein the medium comprises at least one of poly(ethylene oxide), poly(styrene), poly(acrylonitrile), poly(vinylidene fluoride), diiodomethane, 1,3-diiodopropane, N,N-dimethylformamide, dimethylpropylene urea, ethylene carbonate, diethylene carbonate, dimethyl carbonate, propylene carbonate, a block copolymer lithium electrolyte doped with a lithium salt, glass with at least one of LiI, LiF, LiCl, Li 2 O—B 2 O 3 —Bi 2 O 3 , Li 2 O—B 2 O 3 —P 2 O 5 and Li 2 O—B 2 O 3 —PbO and a sol or gel of the oxides or hydroxides of Ti, Zr, Pb, or Bi, in a liquid state, in a suspension, in a solution, or in a melt state.
12. The method of claim 1 , wherein the medium comprises a solid polymeric material or a precursor thereto, in a liquid state, in a suspension, in a solution, or in a melt state.
13. The method of claim 1 , wherein the bipolar device is a battery.
14. A method for producing a bipolar device comprising:
providing a medium, a first electroactive material and a second electroactive material, wherein the medium is electronically-insulating and ionically-conductive;
combining the first and second electroactive materials and the medium, wherein the first electroactive material has lower density than the medium and floats in the medium; and the second electroactive material has higher density than the medium and sinks in the medium;
segregating at least a portion of the first electroactive material into a first spatial region that is essentially free of the second electroactive material to form an electronically-connected first electro active material; and
segregating at least a portion of the second electroactive material into a second spatial region that is essentially free of the first electroactive material to form an electronically-connected second electroactive material.
15. The method of claim 14 , wherein segregating at least a portion of the first electroactive material comprises allowing at least a portion of the first electroactive material to float to the first spatial region, and wherein the first spatial region is above the second spatial region.
16. The method of claim 14 , wherein segregating at least a portion of the second electroactive material comprises allowing at least a portion of the second electroactive material to sink to the second spatial region, and wherein the second spatial region is below the first spatial region.
17. The method of claim 14 , wherein the first electroactive material is in the form of particles of a first type.
18. The method of claim 14 , wherein the second electroactive material is in the form of particles of a second type.
19. The method of claim 14 further comprising providing a first current collector in electronic communication with the electronically-connected first electroactive material and a second current collector in electronic communication with the electronically-connected second electroactive material.
20. The method of claim 14 , wherein the first electroactive material comprises at least one of LiCoO 2 , LiCoO 2 doped with Mg, LiNiO 2 , LiMn 2 O 4 , LiMnO 2 , LiMnO 2 doped with Al, LiFePO 4 , Li(Fe,Mn)PO 4 , LiFePO 4 doped with one or more of Mg, Al, Ti, Nb, Ta, Zr, or W, Li 2 Fe 2 (SO 4 ) 3 , V 2 O 5 , V 6 O 11 , C, amorphous carbon, graphite, mesocarbon microbeads, Li, LiAl, Li 9 Al 4 , Li 3 Al, Zn, LiZn, Ag, LiAg, Li 10 Ag 3 , B, Li 5 B 4 , Li 7 B 6 , Ge, Si, Li 12 Si 7 , Li 21 Si 8 , Li 13 Si 4 , Li 21 Si 5 , Sn, Li 5 Sn 2 , Li 13 Sn 5 , Li 7 Sn 2 , Li 22 Sn 5 , Sb, Li 2 Sb, Li 3 Sb, Bi, LiBi, Li 3 Bi, SnO 2 , SnO, MnO, Mn 2 O 3 , MnO 2 , Mn 3 O 4 , CoO, NiO, FeO, LiFe 2 O 4 , TiO 2 , LiTi 2 O 4 , glass with a Sn—B—P—O compound and mesocarbon microbeads coated with at least one of poly(o-methoxyaniline), poly(3-octylthiophene), and poly(vinylidene fluoride).
21. The method of claim 14 , wherein the second electroactive material comprise at least one of LiCoO 2 , LiCoO 2 doped with Mg, LiNiO 2 , LiMn 2 O 4 , LiMnO 2 , LiMnO 2 doped with Al, Li(Fe,Mn)PO 4 , LiFePO 4 , LiFePO 4 doped with one or more of Mg, Al, Ti, Nb, Ta, Zr, or W, Li 2 Fe 2 (SO 4 ) 3 , V 2 O 5 , V 6 O 11 , C, amorphous carbon, graphite, mesocarbon microbeads, Li, LiAl, Li 9 Al 4 , Li 3 Al; Zn, LiZn, Ag, LiAg, Li 10 Ag 3 , B, Li 5 B 4 , Li 7 B 6 , Ge, Si, Li 12 Si 7 , Li 21 Si 8 , Li 13 Si 4 , Li 21 Si 5 , Sn, Li 5 Sn 2 , Li 13 Sn 5 , Li 7 Sn 2 , Li 22 Sn 5 , Sb, Li 2 Sb, Li 3 Sb, Bi, LiBi, Li 3 Bi, SnO 2 , SnO, MnO, Mn 2 O 3 , MnO 2 , Mn 3 O 4 , CoO, NiO, FeO, LiFe 2 O 4 , TiO 2 , LiTi 2 O 4 , glass with a Sn—B—P—O compound and mesocarbon microbeads coated with at least one of poly(o-methoxyaniline), poly(3-octylthiophene), and poly(vinylidene fluoride).
22. The method of claim 14 , wherein the medium comprises at least one of poly(ethylene oxide), poly(styrene), poly(acrylonitrile), poly(vinylidene fluoride), diiodomethane, 1,3-diiodopropane, N,N-dimethylformamide, dimethylpropylene urea, ethylene carbonate, diethylene carbonate, dimethyl carbonate, propylene carbonate, a block copolymer lithium electrolyte doped with a lithium salt, glass with at least one of LiI, LiF, LiCl, Li 2 O—B 2 O 3 —Bi 2 O 3 , Li 2 O—B 2 O 3 —P 2 O 5 and Li 2 O—B 2 O 3 —PbO and a sol or gel of the oxides or hydroxides of Ti, Zr, Pb, or Bi, in a liquid state, in a suspension, in a solution, or in a melt state.
23. The method of claim 14 , wherein the bipolar device is a battery.