Hierachical structure of transition metal cyanide coordination compounds

Patent metadata

Field	Value
Publication number	US-11522229-B1
Application number	US-202217711623-A
Country	US
Kind code	B1
Filing date	Apr 1, 2022
Priority date	Apr 1, 2022
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A system and method for implementing and manufacturing a hierarchy system for use with a TMCCC-containing electrically-conductive structure (e.g., an electrode) as well as methods for use and manufacturing of such structures and electrochemical cells including these devices. Structures and methods include a coordination complex having LxMyNzTia1Va2Cra3Mna4Fea5Coa6Nia7Cua8Zna9Caa10Mga11[R(CN)6]b (H2O)c. The method includes binding electrochemically active material to produce a hierarchical structure, the hierarchical structure having a plurality of primary crystallites having a size D1, the plurality of these primary crystallites agglomerated into a set of agglomerates each agglomerate having a size D2>D1.

First claim

What is claimed as new and desired to be protected by Letters Patent of the United States is:

1. A coordination complex, comprising:
a composition of L x M y N z Ti a1 V a2 Cr a3 Mn a4 Fe a5 Co a6 Ni a7 Cu a8 Zn a9 Ca a10 Mg a11 [R(CN) 6 ] b (H 2 O) c ; and
a plurality of particles of said composition; and
wherein said plurality of particles include a hierarchical structure, and wherein said hierarchical structure includes a plurality of primary crystallites having a size D1, and in which said plurality of primary crystallites are agglomerated into a set of agglomerates each agglomerate having a size D2>D1;
wherein each of L, M and N represents an alkaline metal;
wherein 0≤x≤2;
wherein 0≤y≤x;
wherein 0≤z≤x;
wherein 0<b≤1;
wherein 0<c;
wherein for each element of the set {a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11}, 0≤{a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11}≤1; and
wherein at least one of {a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11} is >0.

2. The coordination complex of claim 1 wherein D1<1 μm.

3. The coordination complex of claim 2 wherein D2 includes a particle size distribution having a 50 th percentile size >6 μm.

4. The coordination complex of claim 3 wherein said particle size distribution D2 includes a 10 th percentile size greater than 1.5 μm.

5. The coordination complex of claim 4 wherein said particle size distribution D2 includes a 90 th percentile size greater than 7.5 μm.

6. The coordination complex of claim 1 wherein said composition includes a specific surface area >2 m 2 per gram.

7. The coordination complex of claim 5 wherein said composition includes a specific surface area >2 m 2 per gram.

8. The coordination complex of claim 1 wherein said composition includes a tap density <0.9 g/cm 3 .

9. The coordination complex of claim 5 wherein said composition includes a tap density <0.9 g/cm 3 .

10. The coordination complex of claim 7 wherein said composition includes a tap density <0.9 g/cm 3 .

11. An electrically conductive structure for an electrochemical cell, comprising:
one or more conductive carbons;
one or more polymer binders;
a current collector; and
one or more TMCCC;
wherein at least one of said conductive carbons include nanoparticulate carbons;
wherein said current collector includes a metal foil;
wherein said metal foil includes a surface coating including a carbon material;
wherein said polymer binder include functionalized SEBS binders;
wherein said TMCCC include:
a composition of L x M y N z Ti a1 V a2 Cr a3 Mn a4 Fe a5 Co a6 Ni a7 Cu a8 Zn a9 Ca a10 Mg a11 [R(CN) 6 ] b (H 2 O) c ; and
a plurality of particles of said composition; and
wherein said plurality of particles include a hierarchical structure, and wherein said hierarchical structure includes a plurality of primary crystallites having a size D1, and in which said plurality of primary crystallites are agglomerated into a set of agglomerates each agglomerate having a size D2>D1;

wherein each of L, M and N represents an alkaline metal;
wherein 0≤x≤2;
wherein 0≤y≤x;
wherein 0≤z≤x;
wherein 0<b≤1;
wherein 0<c;
wherein for each element of the set {a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11}, 0≤{a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11}≤1; and
wherein at least one of {a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11} is >0; and
wherein a4>0; and
wherein a5>0; and
wherein 0.25 μm<D1<1 μm.

12. An electrochemical cell, comprising:
a cell stack having a liquid electrolyte, an anode electrode, a separator, and a cathode electrode, said electrodes electrochemically communicated with said liquid electrolyte; and
wherein said liquid electrolyte includes a polar organic solvent combined with an alkali metal salt;
wherein said separator includes polymer membranes;
wherein said membrane may have a surface coating including nanoparticulate alumina and boehmite;
wherein said anode electrode includes a TMCCC;
wherein said anode electrode includes a conductive carbon;
wherein said cathode electrode includes a TMCCC;
wherein said TMCCC further comprises:
a composition of L x M y N z Ti a1 V a2 Cr a3 Mn a4 Fe a5 Co a6 Ni a7 Cu a8 Zn a9 Ca a10 Mg a11 [R(CN) 6 ] b (H 2 O) c ; and
a plurality of particles of said composition; and
wherein said plurality of particles include a hierarchical structure, and wherein said hierarchical structure includes a plurality of primary crystallites having a size D1, and in which said plurality of primary crystallites are agglomerated into a set of agglomerates each agglomerate having a size D2>D1;

wherein each of L, M and N represents an alkaline metal;
wherein 0≤x≤2;
wherein 0≤y≤x;
wherein 0≤z≤x;
wherein 0<b≤1;
wherein 0<c;
wherein for each element of the set {a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11}, 0≤{a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11}≤1; and
wherein at least one of {a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11} is >0; and
wherein a4>0; and
wherein a5>0; and
wherein 0.25 μm<D1<1 μm.

13. The electrochemical cell of claim 12 wherein said cell stack includes one or more additional anode, cathode or reference conductive structures, and combinations thereof.

Assignees

• Natron Energy Inc

Inventors

• Das Dyuman Lionnel
• Wessells Colin Deane
• Friebel Daniel
• Mosso Ronald James
• Wampler Keith Michael

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M4/13

  Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title

• H01M4/622

  being polymers · CPC title

• H01M4/667

  in the form of layers, e.g. coatings · CPC title

• H01M4/0404

  by coating on electrode collectors · CPC title