Electrode active material for power storage device, power storage device, and electronic and transportation device

Patent metadata

Field	Value
Publication number	US-9650392-B2
Application number	US-201113393519-A
Country	US
Kind code	B2
Filing date	Feb 15, 2011
Priority date	Feb 15, 2010
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

Disclosed are an electrode active material for a power storage device and a power storage device including the same. The electrode active material includes a polymer that includes: a tetravalent group derived from a compound selected from the group consisting of EBDT and derivatives thereof, TTF and derivatives thereof, a condensation product of EBDT and TTF and derivatives thereof, and a TTF dimer and derivatives thereof; and a divalent group —S-A-S— where A is a divalent aliphatic group or a divalent group represented by the formula -E-D-E- where D represents a divalent alicyclic group, a divalent aromatic group, or a carbonyl group, and two Es each independently represent a divalent aliphatic group. Adjacent two tetravalent groups mentioned above are linked by one or two divalent groups mentioned above.

First claim

The invention claimed is:

1. A power storage device comprising: a positive electrode; a negative electrode; and an electrolyte that includes a non-aqueous solvent and a supporting salt comprising an anion and a cation dissolved in the non-aqueous solvent,
wherein an electrode active material included in at least one of the positive electrode and the negative electrode is an electrode active material comprising a polymer that includes a repeat unit X represented by the following general formula (X) and a repeat unit Y, where the repeat unit X and the repeat unit Y are components of a main chain, adjacent two repeat units Y are linked by one or two repeat units X, and the repeat unit Y is at least one selected from the group consisting of repeat units Y1, Y2, Y3, and Y4 represented by the following general formulae (Y1), (Y2), (Y3), and (Y4), respectively, and
wherein the electrode active material does not include a charge transfer complex composed of a fulvalene derivative and iodine,

where in the formula (X), A represents a divalent aliphatic group or a divalent group represented by the formula -E-D-E- where D represents a divalent alicyclic group, a divalent aromatic group, or a carbonyl group, and two Es each independently represent a divalent aliphatic group; in the formula (Y1) and the formula (Y3), R 1 and R 2 each independently represent a hydrogen atom, a fluorine atom, a monovalent aliphatic group, or a monovalent aromatic group; and the monovalent and divalent aliphatic groups, the divalent alicyclic group, and the monovalent and divalent aromatic groups can each independently contain at least one kind of atom selected from the group consisting of halogen atom, nitrogen atom, oxygen atom, sulfur atom, and silicon atom.

2. The power storage device according to claim 1 ,
wherein the repeat unit Y has four bonding sites,
at least two of the bonding sites are each bonded to the repeat unit X, and
the remaining bonding sites not bonded to the repeat unit X are each bonded to a group —R where R represents a hydrogen atom, a fluorine atom, a monovalent aliphatic group, or a monovalent aromatic group; and the monovalent aliphatic group and the monovalent aromatic group each independently contain at least one kind of atom selected from the group consisting of halogen atom, nitrogen atom, oxygen atom, sulfur atom, and silicon atom.

3. The power storage device according to claim 1 ,
wherein the polymer is a one-linking polymer in which adjacent two repeat units Y are linked by one repeat unit X, and
the one-linking polymer includes at least one selected from the group consisting of repeat units Z1, Z2, Z3, and Z4 represented by the following general formulae (Z1), (Z2), (Z3), and (Z4), respectively,

where in the formulae (Z1) to (Z4), A, R 1 , and R 2 are as defined above; R 3 and R 6 each independently represent a hydrogen atom, a fluorine atom, a monovalent aliphatic group, or a monovalent aromatic group; the monovalent aliphatic group and the monovalent aromatic group can contain at least one kind of atom selected from the group consisting of halogen atom, nitrogen atom, oxygen atom, sulfur atom, and silicon atom; and p1 to p4 each represent the total number of repetition of the repeat units Z1 to Z4 in the one-linking polymer and represent a real number of 2 or more.

4. The power storage device according to claim 1 ,
wherein the polymer is a one-linking polymer (1) in which adjacent two repeat units Y are linked by one repeat unit X, and
the one-linking polymer (1) is at least one selected from the group consisting of polymers 1a, 1b, 1c, 1d, 1e, and 1f represented by the following general formulae (1a), (1b), (1c), (1d), (1e), and (1f), respectively,

where in the formulas (1a) to (1f), A, R 1 and R 2 are as defined above; R 3 to R 6 each independently represent a hydrogen atom, a fluorine atom, a monovalent aliphatic group, or a monovalent aromatic group; the monovalent aliphatic group and the monovalent aromatic group can contain at least one kind of atom selected from the group consisting of halogen atom, nitrogen atom, oxygen atom, sulfur atom, and silicon atom; R 3 and R 4 bonded to adjacent carbon atoms can be joined to form a ring, and R 5 and R 6 bonded to adjacent carbon atoms can be joined to form a ring; and n represents a real number of 1 or more.

5. The power storage device according to claim 1 ,
wherein the polymer is a one-linking polymer in which adjacent two repeat units Y are linked by one repeat unit X, and
the one-linking polymer includes at least one selected from the group consisting of repeat units Z6, Z7, Z8, Z9, and Z10 represented by the following general formulae (Z6), (Z7), (Z8), (Z9), and (Z10), respectively,

where in the formulas (Z6) to (Z10), A, R 1 , and R 2 are as defined above; R 3 and R 4 each independently represent a hydrogen atom, a fluorine atom, a monovalent aliphatic group, or a monovalent aromatic group; the monovalent aliphatic group and the monovalent aromatic group can contain at least one kind of atom selected from the group consisting of halogen atom, nitrogen atom, oxygen atom, sulfur atom, and silicon atom; and q1 to q5 each represent the total number of repetition of the repeat units Z6 to Z10 in the one-linking polymer and represent a real number of 2 or more.

6. The power storage device according to claim 1 ,
wherein the polymer is a one-linking polymer (2) in which adjacent two repeat units Y are linked by one repeat unit X, and
the one-linking polymer (2) is at least one selected from the group consisting of polymers 2a, 2b, 2c, 2d, 2e, and 2f represented by the following general formulae (2a), (2b), (2c), (2d), (2e), and (2f), respectively,

where in the formulae (2a) to (2f), A, R 1 and R 2 are as defined above; R 3 to R 6 each independently represent a hydrogen atom, a fluorine atom, a monovalent aliphatic group, or a monovalent aromatic group; the monovalent aliphatic group and the monovalent aromatic group can contain at least one kind of atom selected from the group consisting of halogen atom, nitrogen atom, oxygen atom, sulfur atom, and silicon atom; R 3 and R 4 bonded to adjacent carbon atoms can be joined to form a ring, and R 5 and R 6 bonded to adjacent carbon atoms can be joined to form a ring; and n represents a real number of 1 or more.

7. The power storage device according to claim 1 ,
wherein the polymer is a two-linking polymer in which adjacent two repeat units Y are linked by two repeat units X, and
the two-linking polymer includes at least one selected from the group consisting of repeat units Z11, Z12, Z13, and Z14 represented by the following general formulae (Z11), (Z12), (Z13), and (Z14), respectively,

where in the formulae (Z11) to (Z14), A, R 1 , and R 2 are as defined above; and r1 to r4 each represent the total number of repetition of the repeat units Z11 to Z14 in the two-linking polymer and represent a real number of 2 or more.

8. The power storage device according to claim 1 ,
wherein the polymer is a two-linking polymer (3) in which adjacent two repeat units Y are linked

Assignees

• Hojo Nobuhiko
• Ohtsuka Yu
• Tsukagoshi Takafumi
• Misaki Yohji
• Panasonic Corp

Inventors

• Hojo Nobuhiko
• Ohtsuka Yu
• Tsukagoshi Takafumi
• Misaki Yohji

Classifications

• H01G11/62

  characterised by the solute, e.g. salts, anions or cations therein · CPC title

• C07D495/04 Primary

  Ortho-condensed systems · CPC title

• C07D495/14

  Ortho-condensed systems · CPC title

• H01M4/604

  containing aliphatic main chain polymers · CPC title

• H01G11/48

  Conductive polymers · CPC title