Chandra Kc

US Patent:

20220275174, Sep 1, 2022

Filed:

May 20, 2022

Appl. No.:

17/749849

Inventors:

- San Jose CA, US
Bryce H. Anzelmo - Mountain View CA, US
Bruce Lanning - Littleton CO, US
Daniel Cook - Woodside CA, US
Elena Rogojina - San Jose CA, US
Karel Vanheusden - Woodside CA, US
Margaret Hines - San Jose CA, US
John Baldwin - San Jose CA, US
Chandra B. KC - San Jose CA, US

Assignee:

Lyten, Inc. - San Jose CA

International Classification:

C08K 9/02
C01B 32/194
C08K 3/04
C08K 11/00
C08K 13/08
H01J 37/32

Abstract:

Methods include producing tunable carbon structures and combining carbon structures with a polymer to form a composite material. Carbon structures include crinkled graphene. Methods also include functionalizing the carbon structures, either in-situ, within the plasma reactor, or in a liquid collection facility. The plasma reactor has a first control for tuning the specific surface area (SSA) of the resulting tuned carbon structures as well as a second, independent control for tuning the SSA of the tuned carbon structures. The composite materials that result from mixing the tuned carbon structures with a polymer results in composite materials that exhibit exceptional favorable mechanical and/or other properties. Mechanisms that operate between the carbon structures and the polymer yield composite materials that exhibit these exceptional mechanical properties are also examined.

US Patent:

20220271291, Aug 25, 2022

Filed:

Feb 16, 2022

Appl. No.:

17/672960

Inventors:

- San Jose CA, US
Jesse Baucom - Sunnyvale CA, US
Elena Rogojina - San Jose CA, US
Chandra B. KC - San Jose CA, US
Jingning Shan - San Jose CA, US
Jerzy Gazda - Austin TX, US
Ratnakumar Bugga - Arcadia CA, US

Assignee:

LytEn, Inc. - San Jose CA

International Classification:

H01M 4/62
H01M 10/0525

Abstract:

A lithium-sulfur battery including an anode structure, a cathode, a separator, and an electrolyte is provided. A protective layer may form within the anode structure responsive to operational discharge-charge cycling of the lithium-sulfur battery. The protective layer may include a polymeric backbone chain formed of interconnected carbon atoms collectively defining a segmental motion of the protective layer. Additional polymeric chains may be cross-linked to one another and at least some carbon atoms of the polymeric backbone chain. Each additional polymeric chain may be formed of interconnected monomer units. A plasticizer may be dispersed throughout the protective layer without covalently bonding to the polymeric backbone chain. The plasticizer may separate adjacent monomer units of at least some additional polymeric chains. Increasing separation of adjacent monomer units increases a cooperative segmental mobility of the additional polymeric chains and ionic conductivity of the protective layer.

US Patent:

20220263111, Aug 18, 2022

Filed:

Feb 8, 2022

Appl. No.:

17/666753

Inventors:

- San Jose CA, US
Jesse Baucom - Sunnyvale CA, US
Elena Rogojina - San Jose CA, US
Chandra B. KC - San Jose CA, US
Jingning Shan - San Jose CA, US
Jerzy Gazda - Austin TX, US
Ratnakumar Bugga - Arcadia CA, US

Assignee:

LytEn, Inc. - San Jose CA

International Classification:

H01M 10/052
H01M 10/0562
H01M 4/38
H01M 4/04
H01M 4/62

Abstract:

An lithium-sulfur battery including an anode structure, a cathode, a separator, and an electrolyte is provided. The electrolyte may be dispersed throughout the cathode and in contact with the anode. An artificial solid-electrolyte interphase (A-SEI) may form on the anode, and a protective layer (e.g., that may be pinhole free) may form within and/or on the A-SEI to face the cathode. The protective layer may be formed from carbonaceous materials, which may provide exposed carbon atoms grafted with one or more ions, such as fluorine anions (F−), uniformly dispersed throughout the protective layer. In addition, the protective layer may include polymeric chains positioned generally opposite to each other. The polymeric chains may cross-link upon exposure to ultraviolet (UV) energetic radiation to form a three-dimensional (3D) lattice having a defined cross-linking density suitable to trap one or more anions during discharge-charge operational cycling of the lithium-sulfur battery.

US Patent:

20200172705, Jun 4, 2020

Filed:

Feb 6, 2020

Appl. No.:

16/784146

Inventors:

- Sunnyvale CA, US
Bryce H. Anzelmo - Mountain View CA, US
Bruce Lanning - Littleton CO, US
Daniel Cook - Woodside CA, US
Elena Rogojina - San Jose CA, US
Karel Vanhuesden - Woodside CA, US
Margaret Hines - San Jose CA, US
John Baldwin - San Jose CA, US
Chandra B. KC - San Jose CA, US

Assignee:

Lyten, Inc. - Sunnyvale CA

International Classification:

C08K 9/02
C01B 32/194
C08K 3/04
C08K 11/00
C08K 13/08
H01J 37/32

Abstract:

Methods include producing tunable carbon structures and combining carbon structures with a polymer to form a composite material. Carbon structures include crinkled graphene. Methods also include functionalizing the carbon structures, either in-situ, within the plasma reactor, or in a liquid collection facility. The plasma reactor has a first control for tuning the specific surface area (SSA) of the resulting tuned carbon structures as well as a second, independent control for tuning the SSA of the tuned carbon structures. The composite materials that result from mixing the tuned carbon structures with a polymer results in composite materials that exhibit exceptional favorable mechanical and/or other properties. Mechanisms that operate between the carbon structures and the polymer yield composite materials that exhibit these exceptional mechanical properties are also examined.