Chen Wenrong X Zhang

US Patent:

20200220219, Jul 9, 2020

Filed:

Mar 18, 2020

Appl. No.:

16/822343

Inventors:

- Road Town, VG
- Oakland CA, US
Chen Zhang - Los Angeles CA, US

International Classification:

H01M 10/0567
H01M 10/0525
H01M 10/0565
H01M 10/42

Abstract:

The invention provides a composite separator and an electrochemical device such as a battery with the composite separator. The composite separator includes a membrane comprising at least one polymer and at least one metal organic framework (MOF) material defining a plurality of pore channels, where the at least one MOF material is activated at a temperature for a period of time. The at least one MOF material is a class of crystalline porous scaffolds constructed from metal clusters with organic ligands and comprises unsaturated metal centers, open metal sites and/or structural defects that are able to complex with anions in electrolyte. The membrane is formed by electrospinning of a mixture of the at least one MOF material with a polymer solution comprising the at least one polymer dissolved in at least one solvent, such that the membrane has a porous structure with tunable pore sizes and bead-threaded fibrous morphology.

US Patent:

20180148745, May 31, 2018

Filed:

May 26, 2016

Appl. No.:

15/576243

Inventors:

- Pasadena CA, US
- Santa Monica CA, US
John A. McIntosh - Pasadena CA, US
Russell D. Lewis - Pasadena CA, US
Sek Bik Jennifer Kan - Pasadena CA, US
Kari Hernandez - Pasadena CA, US
Pedro Coelho - Santa Monica CA, US
David Rozzell - Santa Monica CA, US
Chen Zhang - Santa Monica CA, US

Assignee:

California Institute of Technology - Pasadena CA
Provivi, Inc. - Santa Monica CA

International Classification:

C12P 7/62
C12P 7/26

Abstract:

The present invention provides methods by which trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine and related cyclopropane compounds are prepared using synthetic strategies that include a biocatalytic cyclopropanation step.