Use of certain polymers as a charge store

Patent metadata

Field	Value
Publication number	US-10756348-B2
Application number	US-201615568871-A
Country	US
Kind code	B2
Filing date	Aug 8, 2016
Priority date	Aug 26, 2015
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. The secondary batteries are especially notable for high cell voltages, a small drop in capacity even on undergoing several charging and discharging cycles, and simple and scalable processing and production methods (for example by means of screen printing).

First claim

The invention claimed is:

1. A polymer comprising
mutually linked repeat units of the chemical structure (I), wherein the number of repeat units of the chemical structure (I) in the polymer is from 4 to 5000, or
mutually linked repeat units of the chemical structure (II), wherein the number of repeat units of the chemical structure (II) in the polymer is from 4 to 5000:

wherein
m 1 , m 2 , m 3 are each independently an integer of from 0 to 5000,
the repeat units of the chemical structure (I) within the polymer are the same or different from one another,
the repeat units of the chemical structure (II) within the polymer are the same or different from one another,
the repeat units of the chemical structure (I) within the polymer are joined to one another in such a way that the bond identified by “# #” in a particular repeat unit is joined by the bond identified by “#” in the adjacent repeat unit and the bond identified by “§ § ” in a particular repeat unit is joined by the bond identified by “§ ” in the adjacent repeat unit,
the repeat units of the chemical structure (II) within the polymer are joined to one another in such a way that the bond identified by “*” in a particular repeat unit is joined by the bond identified by “**” in the adjacent repeat unit,
the R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , R 21 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 , R 30 radicals are each independently selected from the group consisting of hydrogen, and alkyl group having 1 to 8 carbon atoms,
R 22 is an alkyl group having 1 to 8 carbon atoms,
the R 11 , R 13 , R 15 , R 17 radicals are also each optionally independently a group of the structure (III):

wherein the R 31 , R 32 , R 34 , R 35 radicals are each independently selected from the group consisting of hydrogen, and alkyl group having 1 to 8 carbon atoms,
R 33 is an alkyl group having 1 to 8 carbon atoms,
R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 , R 30 are each also optionally selected from the group consisting of nitro group, —CN, —F, —Cl, —Br, —I, and —O—R 40 wherein R 40 is an alkyl group having 1 to 8 carbon atoms, and
B 1 , B 2 , B 3 , B 4 are independently selected from the group consisting of
direct bond, and
&-(O) p1 —[C═O] p2 —(O) p3 -B 5 -&&, and
wherein p1, p2, p3 are each 0 or 1, with the proviso that it is not simultaneously true that p1=p3=1 and p2=0, and
B 5 is an alkylene group having 1 to 30 carbon atoms.

2. The polymer according to claim 1 ,
wherein
R 1 ═R 3 ,
R 2 ═R 4 ,
R 19 ═R 21 ,
R 20 ═R 23 ,
R 31 ═R 34 , and
R 32 ═R 35 .

3. The polymer according to claim 2 , wherein
R 1 ═R 3 ═H,
R 2 ═R 4 =alkyl group having 1 to 8 carbon atoms,
R 19 ═R 21 ═H, R 20 ═R 23 =alkyl group having 1 to 8 carbon atoms,
R 31 ═R 34 ═H,
R 32 ═R 35 =alkyl group having 1 to 8 carbon atoms and
B 1 , B 2 , B 3 , B 4 are each independently selected from the group consisting of direct bond, methylene, ethylene, n-propylene, and &-B 5 —CH 2 -&&, and
B 5 =1, 4-phenylene.

4. The polymer according to claim 3 , wherein
R 1 ═R 3 ═H,
R 2 ═R 4 =alkyl group having 1 to 6 carbon atoms,
R 19 ═R 21 ═H,
R 20 ═R 23 =alkyl group having 1 to 6 carbon atoms,
R 31 ═R 34 ═H, and
R 32 ═R 35 =alkyl group having 1 to 6 carbon atoms.

5. The polymer according to claim 4 , wherein
R 1 ═R 3 ═H,
R 2 ═R 4 =tert-butyl group,
R 19 ═R 21 ═H,
R 20 ═R 23 =tert-butyl group,
R 31 ═R 34 ═H, and
R 32 ═R 35 =tert-butyl group.

6. An electrical charge storage, comprising:
a redox-active electrode material which comprises the polymer according to claim 1 .

7. An electrical charge storage, the comprising:
a redox-active electrode material made from an electrode slurry which comprises the polymer according to claim 1 .

Assignees

• Evonik Operations Gmbh

Inventors

• Schubert Ulrich
• Wild Andreas
• Haeupler Bernhard

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M4/606 Primary

  containing aromatic main chain polymers · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• C08G59/245

  aromatic · CPC title

• H01M10/052

  Li-accumulators · CPC title