US 12,394,793 B2
Surface modification
Jonathon David Speed, Reading (GB); Scott Brown, Cambridge (GB); and Simon Foxon, Abingdon (GB)
Assigned to NEXEON LIMITED, London (GB)
Filed by Nexeon Limited, Abingdon (GB)
Filed on Mar. 4, 2024, as Appl. No. 18/594,221.
Application 17/749,932 is a division of application No. 15/777,104, granted, now 11,342,558, issued on May 24, 2022, previously published as PCT/GB2016/053594, filed on Nov. 17, 2016.
Application 18/594,221 is a continuation of application No. 17/749,932, filed on May 20, 2022, granted, now 11,923,544.
Claims priority of application No. 1520276 (GB), filed on Nov. 17, 2015.
Prior Publication US 2025/0038208 A1, Jan. 30, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/60 (2006.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 10/054 (2010.01)
CPC H01M 4/60 (2013.01) [H01M 4/366 (2013.01); H01M 4/38 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 4/62 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/054 (2013.01); H01M 2004/027 (2013.01); H01M 4/362 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A porous silicon-carbon composite particle comprising a surface, wherein a linear or branched oligomeric moiety is covalently bonded to the surface, said oligomeric moiety being selected from the group consisting of: Formula I, Formula II, Formula III, and mixtures thereof:
-D1a-[(CR1R2)bX1c]d-E1  Formula I:
-D2e-[GfX2g]h[(CR3R4)jX3k]l-E2  Formula II:
-D3m[(CR5R6)nX4p]q[(CR7R8)rX5t]v-E3  Formula III:
wherein the D1, D2 or D3 is directly bound to a silicon atom of the surface, the silicon atom not being directly bound to an oxygen atom,
in which:
G is an aryl group selected from:

OG Complex Work Unit Chemistry
R1, R2, R3, R4, R7 and R3 are each independently selected from: H, F, fluorinated or non-fluorinated C1-4 alkyl, fluorinated or non-fluorinated C1-4 hydroxyalkyl, 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, CH3;
X1, X2, X3, X4, X5 and X6 are each independently selected from: O, PH, Se and NH;
D1, D2 and D3 are each independently a fluorinated or non-fluorinated first end group selected from the group consisting of: C1-4 alkanediyl, C2-4 alkenediyl, C2-4 alkynediyl, a hydroxy substituted C1-4 alkanediyl, C1-4 alkanediyloxy, C2-4 alkenediyloxy, C2-4 alkynediyloxy, C2-4 alkanoyloxy, C3-4 alkenoyloxy, C3-4 alkynoyloxy, C1-4 alkanediyloxycarbonyl, C2-4 alkenediyloxycarbonyl, C2-4 alkynediyloxycarbonyl;
E1, E2, E3 and E4 are each independently a second end group selected from the group consisting of:
linear and branched, optionally substituted, 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 where 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;
l=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
x=from 1 to 15.