Lithium ion-based internal hybrid electrochemical energy storage cell

Patent metadata

Field	Value
Publication number	US-10727002-B2
Application number	US-201715728488-A
Country	US
Kind code	B2
Filing date	Oct 9, 2017
Priority date	Oct 9, 2017
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

Provided is an internal hybrid electrochemical cell comprising: (A) a pseudocapacitance cathode comprising a cathode active material that contains a conductive carbon material and a porphyrin compound, wherein the porphyrin compound is bonded to or supported by the carbon material to form a redox pair for pseudocapacitance, wherein the carbon material is selected from activated carbon, activated carbon black, expanded graphite flakes, exfoliated graphite worms, carbon nanotube, carbon nanofiber, carbon fiber, a combination thereof; (B) a battery-like anode comprising lithium metal, lithium metal alloy, or a prelithiated anode active material (e.g. prelithiated Si, SiO, Sn, SnO 2 , etc.), and (C) a lithium-containing electrolyte in physical contact with the anode and the cathode; wherein the cathode active material has a specific surface area no less than 100 m 2 /g which is in direct physical contact with the electrolyte.

First claim

We claim:

1. An internal hybrid electrochemical cell comprising:
(A) a cathode comprising a cathode active material that contains a conducting carbon material and a porphyrin compound, wherein said porphyrin compound is bonded to or supported by said carbon material to form a redox pair for pseudocapacitance and said carbon material is selected from activated carbon, activated carbon black, expanded graphite flakes, exfoliated graphite worms, carbon nanotube, carbon nanofiber, carbon fiber, a combination thereof, or a combination thereof with graphene, wherein said porphyrin compound is bonded to graphene sheet surfaces of said carbon material in a face-to-face manner;
(B) a anode comprising a prelithiated anode active material selected from the group consisting of (a) lithiated silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zinc (Zn), aluminum (Al), titanium (Ti), cobalt (Co), nickel (Ni), manganese (Mn), cadmium (Cd), and mixtures thereof; (b) lithiated alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Co, Ni, Mn, Cd, and their mixtures; (c) lithiated oxides, carbides, nitrides, sulfides, phosphides, selenides, tellurides, or antimonides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Fe, Ti, Co, Ni, Mn, Cd, and mixtures or composites thereof; (d) lithiated graphite and lithiated carbon materials; and (e) combinations thereof, and
(C) a lithium-containing electrolyte in physical contact with the anode and the cathode; wherein said cathode active material has a specific surface area no less than 100 m 2 /g which is in direct physical contact with said electrolyte.

2. The internal hybrid electrochemical cell of claim 1 , wherein said anode comprises a prelithiated anode active material selected from lithiated Si, lithiated Ge, lithiated Sn, lithiated SiO, lithiated SnO 2 , lithiated Co 3 O 4 , lithiated Mn 3 O 4 , lithiated Fe 3 O 4 , lithiated ZnMn 2 O 4 , or a combination thereof and said anode does not contain lithium metal.

3. The internal hybrid electrochemical cell of claim 1 , wherein said lithiated graphite and lithiated carbon materials are selected from lithiated particles of natural graphite, artificial graphite, soft carbon, hard carbon, coke, carbon fibers, graphite fibers, carbon nanofibers, carbon nanotubes, carbon nanohorns, expanded graphite platelets, graphene sheets, or a combination thereof that have been pre-loaded with lithium, pre-reacted with lithium, and/or pre-intercalated with lithium.

4. The internal hybrid electrochemical cell of claim 1 , wherein said porphyrin compound is selected from porphyrin, porphyrin-copper, porphyrin-zinc, porphyrin-nickel, porphyrin-cobalt, porphyrin-manganese, porphyrin-iron, porphyrin-tin, porphyrin-cadmium, porphyrin-vanadium, polyporphyrin, a chemical derivative of porphyrin, a functionalized porphyrin compound, or a combination thereof.

5. The internal hybrid electrochemical cell of claim 1 , wherein said porphyrin compound is selected from a porphyrin-transition metal complex.

6. The internal hybrid electrochemical cell of claim 1 , wherein said porphyrin compound contains a functionalized porphyrin compound having at least a functional group attached to a porphyrin molecule, wherein said functional group is selected from OY, NHY, O‥C—OY, P═C—NR′Y, O═C—SY, O═C—Y, —CR′1-OY, N′Y or C′Y, and Y is a functional group of a protein, a peptide, an amino acid, an enzyme, an antibody, a nucleotide, an oligonucleotide, an antigen, or an enzyme substrate, enzyme inhibitor or the transition state analog of an enzyme substrate or is selected from a phenol group, R′—OH, R′—NR′ 2 , R′SH, R′CHO, R′CN, R′X, R′N + (R′) 3 X − , R′SiR′ 3 , R′Si(—OR′—) y R′ 3-y , R′Si(—O—SiR′ 2 —)OR′, R′—R″, R′—N—CO, (C 2 H 4 O—) w H, (—C 3 H 6 O—) w H, (—C 2 H 4 O) w —R′, (C 3 H 6 O) w —R′, R′, and w is an integer greater than one and less than 200.

7. The internal hybrid electrochemical cell of claim 1 , wherein said porphyrin compound contains a functionalized porphyrin compound having at least a functional group attached to a porphyrin molecule, wherein said functional group is selected from the group consisting of amidoamines, polyamides, aliphatic amines, modified aliphatic amines, cycloaliphatic amines, aromatic amines, anhydrides, ketimines, diethylenetriamine (DETA), triethylene-tetramine (TETA), tetraethylene-pentamine (TEPA), polyethylene polyamine, polyamine epoxy adduct, phenolic hardener, non-brominated curing agent, non-amine curatives, and combinations thereof.

8. The internal hybrid electrochemical cell of claim 1 , wherein said porphyrin compound contains a functionalized porphyrin compound having at least a functional group attached to a porphyrin molecule, wherein said functional group contains an azide or bi-radical compound selected from the group consisting of 2-Azidoethanol, 3-Azidopropan-1-amine, 4-(2-Azidoethoxy)-4-oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R=any one of the following groups,

and combinations thereof.

9. The internal hybrid electrochemical cell of claim 1 , wherein said conductive carbon material forms a mesoporous structure having meso-scaled pores of 2-50 nm and a specific surface area from 100 m 2 /g to 3,200 m 2 /g.

10. The internal hybrid electrochemical cell of claim 1 , wherein said activated carbon is selected from chemically etched or expanded soft carbon, chemically etched or expanded hard carbon, exfoliated activated carbon, chemically etched multi-walled carbon nanotube, nitrogen-doped carbon nanotube, boron-doped carbon nanotube, chemically doped carbon nanotube, ion-implanted carbon nanotube, chemically treated multi-walled carbon nanotube with an inter-planar separation no less than 0.4 nm, chemically expanded carbon nanofiber, activated carbon fiber, activated graphite fiber, activated carbonized polymer fiber, activated coke, activated pitch, activated asphalt, activated mesophase carbon, activated mesoporous carbon, activated electrospun conductive nanofiber, or a combination thereof.

11. The internal hybrid electrochemical cell of claim 1 , wherein said graphene sheets comprise single-layer or few-layer graphene, containing up to 10 graphene planes, selected from pristine graphene, graphene oxide, reduced graphene oxide, halogenated graphene, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof.

12. The internal hybrid electrochemical cell of claim 1 , wherein said lithium metal or lithium metal alloy is in a form of metal foil, film, particles, chips, or filaments and wherein said metal alloy contains no less than 80% by weight of lithium.

13. The internal hybrid electrochemical cell of claim 1 , wherein said anode active material contains prelithiated particles of Si, Ge, SiO, Sn, SnO 2 , or a combination thereof.

14. The internal hybrid electrochemical cell of claim 1 , wherein said cathode further contains a resin binder that bonds particles of said cathode active material together.

15. The internal hybrid electrochemical cell of claim 1 , wherein at least one of the anode and the cathode contains a current collector that is a porous, electrically conductive material selected from metal foam, metal web or screen, perforated metal sheet, metal fiber mat, metal nanowire mat, porous conductive polymer film, conductive polymer nanofiber mat or paper, conductive polymer foam, carbon foam, carbon aerogel, carbon xero

Assignees

• Nanotek Instruments Inc
• Nanotek Instr Group Llc

Inventors

• Chai Songhai
• Lin Yen-Po
• Zhamu Aruna
• Jang Bor Z

Classifications

• C01B32/05 Primary

  Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30 · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• D01F9/14

  by decomposition of organic filaments · CPC title

• H01G11/30

  characterised by their material · CPC title

• C01B32/342

  characterised by non-gaseous activating agents · CPC title