Patent ID: 11923544
Assignee: NEXEON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method of modifying a surface of an electrochemically active material, the method comprising:
providing an electrochemically active material having a surface having Si—H groups thereon;
providing an oligomeric precursor having a terminal alkene or alkyne, the oligomeric precursor being of Formula Ia, Formula IIa, Formula IIIa, or mixtures thereof:

D1a-[CR1R2)bX1c]d-E1  Formula Ia

D2a-[GfX2g]h[(CR3R4)jX3k]l-E2  Formula IIa

D3a-[(CR5R6)nX4p]q[(CR7R8)rX57]v-E3  Formula IIIa

in which:
D1a, D2a and D3a are each independently a fluorinated or non-fluorinated first end group selected from the group consisting of: C2-4 alkenediyl, C2-4 alkynediyl, C2-4 alkenediyloxy, C2-4 alkynediyloxy, C3-4 alkenoyloxy, C3-4 alkynoyloxy, C2-4 alkenediyloxycarbonyl, and C2-4 alkynediyloxycarbonyl;

applying the oligomeric precursor to the surface having Si—H groups thereon, to hydrosilylate the Si—H groups to form an electrochemically active material comprising a surface, wherein a linear or branched oligomeric moiety is covalently bonded to the surface, wherein the linear or branched oligomeric moiety is selected from the group consisting of: Formula I, Formula II, Formula III, and mixtures thereof:

-D1[(CR1R2)bX1c]d-E1  Formula I

-D2-[GfX2g]h[(CR3R4)jX3k]l-E2  Formula II

-D3-[(CR5R6)nX4p]q[(CR7R8)rX5t]v-E3  Formula III

in which:
D1, D2 and D3 are each independently a fluorinated or non-fluorinated first end group selected from the group consisting of: C2-4 alkanediyl, C2-4 alkenediyl, C2-4 alkanediyloxy, C2-4 alkenediyloxy, C3-4 alkanoyloxy, C3-4 alkenoyloxy, C2-4 alkanediyloxycarbonyl, and C2-4 alkenediyloxycarbonyl;

wherein:
G is an aryl group selected from:, R1, R2, R3, R4, R7 and R8 are each independently selected from: H, F, fluorinated or non-fluorinated C1-4 alkyl, fluorinated or non-fluorinated C1-4 hydroxyalkyl, and phenyl;
R5 and R6 are each independently selected from Formula IV:

-[(CH2)wX6]x-E4;  Formula IV

R9, R10, R11, R12, R13, R14 and R15 are each independently selected from: H, F, and CH3;
X1, X2, X3, X4, X5 and X6 are each independently selected from: O, PH, Se, and NH;
E1, E2, E3 and E4 are each independently a second end group selected from the group consisting of:
linear and branched, substituted or unsubstituted alkyl groups of the formula-(CH2)yCH3, wherein 0≤y≤9;
linear and branched aryl or alkaryl groups of the formula —(CH2)aaC6HabFac, wherein 0≤aa≤6, and the sum of ab and ac is 5;
linear and branched fluorinated alkyl groups of the formula —(CH2)ad(CF2)aeCF3, wherein 0≤ad≤6 and 0≤ae≤9;
hydroxyl;
hydrogen;
NR162, wherein each R16 is independently selected from H and C1-4 alkyl; nitro group; and
ester groups —COOR17 and OCOR17 here R17 is H or C1-4 alkyl;

a=0 or 1;
b=from 2 to 6;
c=0 or 1;
d=from 0 to 16;
e=0 or 1;
f=from 2 to 6;
g=0 or 1;
h=from 1 to 16;
j=from 2 to 6;
k=0 or 1;
1=from 0 to 15;
h+1=from 2 to 16;
m=0 or 1;
n=from 2 to 6;
p=0 or 1;
q=from 1 to 16;
r=from 2 to 6;
t=0 or 1;
v=0 to 15;
q+v=from 2 to 16;
w=2 to 6; and
x=from 1 to 15.