Coating materials based on unsaturated aliphatic hydrocarbons and uses thereof in electrochemical applications

Patent metadata

Field	Value
Publication number	US-2024266511-A1
Application number	US-202218565828-A
Country	US
Kind code	A1
Filing date	Jun 3, 2022
Priority date	Jun 3, 2021
Publication date	Aug 8, 2024
Grant date	—

Abstract

The present technology relates to a coating material comprising at least one branched or linear unsaturated aliphatic hydrocarbon having from 10 to 50 carbon atoms and having at least one carbon-carbon double or triple bond for use in electrochemical applications, particularly in electrochemical accumulators such as all-solid-state batteries. The present technology also relates to coated particles comprising said coating material and processes of manufacturing the same. Also described are electrode materials, electrodes, electrolytes, current collector coating materials and current collectors comprising said coated particles and their use in electrochemical cells, for example, in electrochemical accumulators, particularly in all-solid-state batteries.

First claim

What is claimed is:

1 . A coating material comprising at least one branched or linear unsaturated aliphatic hydrocarbon having from 10 to 50 carbon atoms and having at least one carbon-carbon double or triple bond for use in an electrochemical cell.

2 . The coating material of claim 1 , wherein the boiling temperature of the unsaturated aliphatic hydrocarbon is above 150° C. or the boiling temperature of the unsaturated aliphatic hydrocarbon is in the range of from about 150° C. to about 675° C. or from about 155° C. to about 670° C. , or from about 160° C. to about 665 ° C. or from about 165 ° C. to about 660° C. or from about 170 ° C. to about 655 ° C. upper and lower limits included.

3 . (canceled)

4 . The coating material of claim 1 , wherein the unsaturated aliphatic hydrocarbon is selected from the group consisting of decene, dodecene, undecene, tridecene, tetradecene, pentadecene, hexadecene, heptadecene, octadecene, 1,9-decadiene, docosene, hexacosene, eicosene, tetracosene, squalene, farnesene, β-carotene, pinenes, dicyclopentadiene, camphene, α-phellandrene, β-phellandrene, terpinenes, β-myrcene, limonene, 2-carene, sabinene, α-cedrene, copaene, β-cedrene, decyne, dodecyne, octadecyne, hexadecyne, tridecyne, tetradecyne, docosyne, and a combination of at least two thereof, preferably the unsaturated aliphatic hydrocarbon is selected from the group consisting of decene, dodecene, undecene, tridecene, tetradecene, pentadecene, hexadecene, haptadecene, octadecene, 1 , 9 -decadiene, docosene, hexacosene, eicosene, tetracosene, squalene, farnesene, β-carotene, and a combination of at least two thereof, more preferably the unsaturated aliphatic hydrocarbon is selected from the group consisting of decene, undecene, octadecene, squalene, farnesene, β-carotene and a combination of at least two thereof, and even more preferably the unsaturated aliphatic hydrocarbon comprises squalene, farnesene, or squalene ad farnesene.

5 - 9 . (canceled)

10 . The coating material of claim 1 , which is a mixture comprising the unsaturated aliphatic hydrocarbon and an additional component preferably being an alkane or a mixture comprising an alkane and a polar solvent, wherein:
the alkane preferably comprises from 19 to 50 carbon atoms, and preferably the alkane is decane; and the polar solvent is selected from tetrahydrofuran, acetonitrile, N,N-dimethlyformamide, and a miscible combination of at least two thereof, and preferably the polar solvent is tetrahydrofuran.

11 - 15 . (canceled)

16 . Coated particles for use in an electrochemical cell, said coated particle comprising:
a core comprising an electrochemically active material, an electronically conductive material, or an ionically conductive inorganic material; and a coating material as defined in claim 1 , the coating material being disposed on the surface of the core, wherein the coating material forms a homogeneous coating layer on the surface of the core or is heterogeneously dispersed on the surface of the core and forms a coating layer on at least part of the surface of the core.

17 - 19 . (canceled)

20 . The coated particles of claim 16 , which are used in an electrode material, an electrolyte, or a current collector.

21 - 22 . (canceled)

23 . A process for manufacturing coated particles as defined in claim 16 , the process comprising at least one step of coating at least a part of the surface of the core with the coating material preferably carried out by a dry coating process or by a wet coating process, wherein the wet coating process is preferably a mechanical coating process, and more preferably the mechanical coating process is a mechanosynthesis or mechanofusion process.

24 - 27 . (canceled)

28 . The process of claim 23 , further comprising a step of grinding the electrochemically active material, the electronically conductive material, or the ionically conductive inorganic material of the core of the coated particle, wherein the coating and grinding steps are carried out simultaneously, sequentially, or partially overlapping in time, and preferably the coating and grinding steps are carried out simultaneously.

29 - 30 . (canceled)

31 . An electrode material comprising:
coated particles as defined in claim 16 , wherein the core of the coated particle comprises an electrochemically active material; and/or an electrochemically active material and coated particles as defined in claim 16 ;
wherein the core of the coated particle preferably comprises the electrochemically active material.

32 . (canceled)

33 . The electrode material of claim 31 , wherein:
the electrochemically active material is selected from a metal oxide, a metal sulfide, a metal oxysulfide, a metal phosphate, a metal fluorophosphate, a metal oxyfluorophosphate, a metal sulfate, a metal halide, a metal fluoride, sulfur, selenium, and a combination of at least two thereof, the metal of be electrochemically active material preferably being selected from titanium (Ti), iron (Fe), manganese (Mn), vanadium (V), nickel (Ni), cobalt (Co), aluminum (Al), chromium (Cr), copper (Cu), zirconium (Zr), niobium (Nb), and a combination of at least two thereof, and preferably the metal of the electrochemically active material further comprises an alkali or alkaline earth metal selected from lithium (Li), sodium (Na), potassium (K), and magnesium (Mg): the electrochemically active material is a lithium metal oxide, and preferably the lithium metal oxide is a mixed oxide of lithium, nickel, manganese, and cobalt (NMC); the electrochemically active material is a lithium metal oxide, and preferably the lithium metal oxide is a mixed oxide of lithium, nickel, maganese, and cobalt (NMC); the electrochemically active material is a lithiated metal phosphate, and preferably the lithiated metal phosphate is lithiated iron phosphate; or the electrochemically active material is selected from a non-alkali or non-alkaline-earth metal, an intermetallic compound, a metal oxide, a metal nitride, a metal phosphide, a metal phosphate, a metal halide, an metal oxide, a metal nitride, a metal phosphide, a metal silicon (Si), a silicon-carbon composite (Si—C), a silicon oxide (SiO x ), a silicon oxide-carbon composite (SiO x —C), tin (Sn), a tin-carbon composite (Sn—C), a tin oxide (SnO x ), a tin oxide-carbon composite (SnO x —C), and a combination of at least two thereof.

34 - 41 . (canceled)

42 . The electrode material of claim 31 , wherein the electrochemically active material further comprises a element, an embedding material, or a combination thereof, wherein the embedding material preferably forms an embedding layer on the surface of said electrochemically active material and the coating material is disposed on the surface of the embedding layer, and preferably wherein:
wherein the embedding material is selected from Li s SiO 3 , LiTaO 3 , LiAlO 2 , Li 2 O—ZrO 2 , LiNbO 3 , other similar embedding materials, and a combination of at least two thereof, and preferably the embedding material is LiNbO 3 ; or The embedding material is an electronically conductive material, and preferably the electronically conductive material is carbon.

43 - 47 . (canceled)

48 . The electrode material of claim 31 , further comprising at least one electronically conductive material, and preferably wherein:
the core of the coated particle comprises the electronically conductive material; the electronically conductive material is selected from the group consistin

Assignees

• Hydro Quebec

Inventors

• Fleutot Benoit
• Garitte Emmanuelle
• Mallet Charlotte
• Delaporte Nicolas
• Girard Marc-André
• Duchesne Steve

Classifications

• H01M2300/0091

  in the form of mixtures · CPC title

• H01M2300/0082

  Organic polymers · CPC title

• H01M2300/008

  Halides · CPC title

• H01M2004/028

  Positive electrodes · CPC title

• H01M2004/027

  Negative electrodes · CPC title