Secondary battery

Patent metadata

Field	Value
Publication number	US-9583750-B2
Application number	US-201214349444-A
Country	US
Kind code	B2
Filing date	Jun 11, 2012
Priority date	Oct 5, 2011
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

A secondary battery charged and discharged even after dissolution. The active material in the cathode body and/or the anode body is a liquid, or the active material undergoes phase transition into a liquid is provided. The secondary battery ( 1 ) includes: a cathode collector ( 2 ), a cathode body ( 3 ), a solid electrolyte ( 4 ), an anode body ( 5 ), and an anode collector ( 6 ). The cathode body and the anode body are sealed by the solid electrolyte, the cathode collector, and/or the anode collector. The cathode body and the anode body preferably contain an active material that undergoes phase transition from a solid to a liquid, or to a phase containing a liquid, due to charge and discharge. The cathode body or the anode body preferably contains a liquid active material. A polymeric layer may be inserted between the cathode body and/or the anode body and the solid electrolyte.

First claim

What is claimed is:

1. A secondary battery comprising:
a cathode collector;
a cathode body;
a solid electrolyte containing a supporting agent;
an anode body;
an anode collector; and
a polymeric layer inserted between the cathode body and the solid electrolyte,
wherein the cathode body is sealed by the polymeric layer and the cathode collector.

2. The secondary battery as set forth in claim 1 , wherein the cathode body contains an active material that undergoes phase transition from a solid to a liquid, or to a phase containing a liquid, due to charge and discharge.

3. The secondary battery as set forth in claim 2 , wherein the active material is any one of at least one of organic molecule that includes a quinone material, or a mixture of sulfur and at least one of organic molecule that includes the quinone material, and a mixture of sulfur and polyaniline.

4. The secondary battery as set forth in claim 2 , wherein the active material is any one of TCNQ, THBQ, DDQ, rubeanic acid, a mixture of DDQ and FeAA, a mixture of DDQ and TCNQ, and a mixture of TCNQ and sulfur.

5. The secondary battery as set forth in claim 1 , wherein the cathode body contains a liquid active material.

6. The secondary battery as set forth in claim 1 , wherein the polymeric layer is made of a material different from the supporting agent.

7. The secondary battery as set forth in claim 1 , wherein the solid electrolyte has lithium (Li) ion conductivity.

8. The secondary battery as set forth in claim 1 , wherein the solid electrolyte comprises the supporting agent and an ionic liquid containing lithium (Li) ions.

9. The secondary battery as set forth in claim 8 , wherein the ionic liquid is any one of TFSA, FSA, molten salt, organic electrolyte, and aqueous electrolyte, or is made of two or more of these substances.

10. The secondary battery as set forth in claim 9 , wherein the organic electrolyte is any one of EC, DEC, and PC, or made of two or more of these substances.

11. The secondary battery as set forth in claim 8 , wherein the ionic liquid is EMI-TFSA or BMP-TFSA.

12. The secondary battery as set forth in claim 8 , wherein the supporting agent is metal oxide particles of any one of SiO2, ZrO2, Al2O3, TiO2, CeO2, Li3PO4, and LiLaTiO3.

13. The secondary battery as set forth in claim 1 , wherein the solid electrolyte further contains a liquid electrolyte layer.

14. The secondary battery as set forth in claim 1 , wherein the anode body is any one of carbon (C), lithium (Li), sodium (Na), magnesium (Mg), calcium (Ca), aluminum (Al), zinc (Zn), indium (In), tin (Sn), and silicon (Si).

15. The secondary battery as set forth in claim 1 , wherein the cathode collector; the cathode body the polymeric layer; the solid electrolyte; the anode body; and the anode collector are laminated in this order.

16. The secondary battery as set forth in claim 1 , wherein the polymeric layer has the ion conductivity.

17. The secondary battery as set forth in claim 1 , wherein the polymeric layer is any one of polyethylene oxide (PEO), polyethylene glycol (PEG), polyvinyl alcohol (PVA), polycarbonate and is a mixture of two or more of these substances.

18. The secondary battery as set forth in claim 17 , wherein the polymeric layer is a mixed PEO film having two different molecular weight of PEO.

19. A secondary battery comprising:
a cathode collector;
a cathode body;
a solid electrolyte containing a supporting agent;
an anode body;
an anode collector; and
a polymeric layer inserted between the cathode body and the solid electrolyte,
wherein the cathode body is sealed by the polymeric layer and the cathode collector and
wherein the cathode body contains an active material that undergoes phase transition from a solid to a liquid, or to a phase containing a liquid, due to charge and discharge.

20. The secondary battery as set forth in claim 19 , wherein the cathode body contains a liquid active material.

21. The secondary battery as set forth in claim 20 , wherein the active material is any one of at least one of organic molecule that includes a quinone material, a mixture of sulfur and at least one of organic molecule that includes the quinone material, and a mixture of sulfur and polyaniline.

22. The secondary battery as set forth in claim 19 , wherein the polymeric layer is made of a material different from the supporting agent.

23. The secondary battery as set forth in claim 19 , wherein the solid electrolyte has lithium (Li) ion conductivity.

24. The secondary battery as set forth in claim 19 , wherein the solid electrolyte comprises the supporting agent and an ionic liquid containing lithium (Li) ions.

25. The secondary battery as set forth in claim 24 , wherein the ionic liquid is any one of TFSA, FSA, molten salt, organic electrolyte, and aqueous electrolyte, or is made of two or more of these substances.

26. The secondary battery as set forth in claim 25 , wherein the organic electrolyte is any one of EC, DEC, and PC, or is made of two or more of these substances.

27. The secondary battery as set forth in claim 24 , wherein the ionic liquid is EMI-TFSA or BMP-TFSA.

28. The secondary battery as set forth in claim 24 , wherein the supporting agent is metal oxide particles of any one of SiO 2 , ZrO 2 , Al 2 O 3 , TiO 2 , CeO 2 , Li 3 PO 4 , and LiLaTiO 3 .

29. The secondary battery as set forth in claim 19 , wherein the solid electrolyte further contains a liquid electrolyte layer.

30. The secondary battery as set forth in claim 19 , wherein the active material is any one of TCNQ, THBQ, DDQ, rubeanic acid, a mixture of DDQ and FeAA, a mixture of DDQ and TCNQ, and a mixture of TCNQ and sulfur.

31. The secondary battery as set forth in claim 19 , wherein the anode body is any one of carbon (C), lithium (Li), sodium (Na), magnesium (Mg), calcium (Ca), aluminum (Al), zinc (Zn), indium (In), tin (Sn), and silicon (Si).

32. The secondary battery as set forth in claim 19 , wherein the cathode collector; the cathode body; the polymeric layer; the solid electrolyte; the anode body; and the anode collector are laminated in this order.

33. The secondary battery as set forth in claim 19 , wherein the polymeric layer has the ion conductivity.

34. The secondary battery as set forth in claim 19 , wherein the polymeric layer is any one of polyethylene oxide (PEO), polyethylene glycol (PEG), polyvinyl alcohol (PVA), polycarbonate and is a mixture of two or more of these substances.

35. The secondary battery as set forth in claim 34 , wherein the polymeric layer is a mixed PEO film having two different molecular weight of PEO.

Assignees

• HANYU Yuki
• Honma Itaru
• Univ Tohoku

Inventors

• HANYU Yuki
• Honma Itaru

Classifications

• H01M10/052 Primary

  Li-accumulators · CPC title

• H01M50/443

  Particulate material · CPC title

• H01M50/414

  Synthetic resins, e.g. thermoplastics or thermosetting resins · CPC title

• H01M2300/0065

  Solid electrolytes · CPC title

• H01M4/622

  being polymers · CPC title