Silatronix, Inc.

Tobias Johnson

Monica Usrey

Michael L Pollina

Deborah Gilbert

Liu Zhou

Peng Du

Robert C West

Jian Dong

David Osmalov

José Adrián Peńa Hueso

Described are compounds of the structure R&#x2014;Si-(Sp-Y)&#x2014;Z, wherein 'a' is an integer from 1 to 4; 'b' is an integer from 0 to (3&#xd7;a); &#x201c;Z,&#x201d; which is absent when &#x201c;b&#x201d;=0, is &#x201c;R&#x201d; or wherein each &#x201c;R&#x201d; is halogen, Clinear or branched alkyl, alkenyl, or alkynyl or Clinear or branched halo-alkyl, halo-alkenyl, or halo-alkynyl; each &#x201c;Sp&#x201d; Clinear or branched alkylenyl or Clinear or branched halo-alkylenyl; and each &#x201c;Y&#x201d; an organic polar group. Also described are electrolyte compositions containing one or more of these compounds.

Functionalized silanes and electrolyte compositions and electrochemical devices containing them

Described are electrolyte compositions and electrochemical devices containing the electrolyte compositions. The compositions include an organosilicon compound, an imide salt and optionally LiPF. The electrolytes provide improved high-temperature performance and stability and will operate at temperatures as high as 250&#xb0; C.

Organosilicon-containing electrolyte compositions having enhanced electrochemical and thermal stability

Described are compounds of the structure R4-&#x2014;Si-(Sp-Y)&#x2014;Z, wherein 'a' is integer from 1 to 4; 'b' is an integer from 0 to (3&#xd7;a); &#x201c;Z,&#x201d; which is absent when &#x201c;b &#x201c;R&#x201d; or formula (II), wherein each &#x201c;R&#x201d; is halogen, Clinear or branched alkyl, alkenyl, or alkynyl or Clinear or branched halo-alkyl, halo-alkenyl, or halo-alkynyl; each &#x201c;Sp&#x201d; Clinear or branched alkylenyl or CMS linear or branched halo-alkylenyl; and each &#x201c;Y&#x201d; an organic polar group. Also described are electrolyte compositions containing one or more of these compounds.

Organosilicon&#x2014;containing electrolyte compositions having enhanced electrochemical and thermal stability

Described are electrolyte compositions and electrochemical devices containing them. The compositions include an organosilicon compound, an imide salt and optionally LiPF6. The electrolytes provide improved high-temperature performance and stability and will operate at temperatures as high as 250 C. An electrolyte composition comprising, in combination: an organosilicon compound and an imide salt and optionally UPF6; wherein when subjected to cyclic voltammetry at a plurality of cycles ranging from about 3V to about 5V and using a cathode current collector comprising aluminum versus Li/Lit electrodes the composition exhibits an oxidative corrosion current of about 0.10 mA/cm2 or less for a second and subsequent cycles.

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Madison, WI, United States of America

Tobias Johnson