Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020198095 - CARBON AEROGEL-BASED CATHODES FOR LITHIUM-SULFUR BATTERIES

Publication Number WO/2020/198095
Publication Date 01.10.2020
International Application No. PCT/US2020/024113
International Filing Date 22.03.2020
IPC
B01D 61/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
B01D 67/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
67Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
CPC
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 2004/028
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
026characterised by the polarity
028Positive electrodes
H01M 4/0416
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
04Processes of manufacture in general
0402Methods of deposition of the material
0416involving impregnation with a solution, dispersion, paste or dry powder
H01M 4/0471
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
04Processes of manufacture in general
0471involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
H01M 4/139
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
H01M 4/38
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
Applicants
  • ASPEN AEROGELS, INC. [US]/[US]
Inventors
  • ZAFIROPOULOS, Nicholas
  • GOULD, George
Agents
  • STOW, Christopher
Priority Data
16/826,27622.03.2020US
62/822,69822.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CARBON AEROGEL-BASED CATHODES FOR LITHIUM-SULFUR BATTERIES
(FR) CATHODES À BASE D'AÉROGEL DE CARBONE POUR DES BATTERIES AU LITHIUM-SOUFRE
Abstract
(EN)
Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof. Embodiments include a sulfur-doped cathode material within a lithium-sulfur battery, where the cathode is collector-less and is formed of a binder-free, monolithic, polyimide-derived carbon aerogel. The carbon aerogel includes pores that surround elemental sulfur and accommodate expansion of the sulfur during conversion to lithium sulfide. The cathode and underlying carbon aerogel provide optimal properties for use within the lithium-sulfur battery.
(FR)
L'invention concerne des échafaudages ou structures à base de carbone nanoporeux, et plus spécifiquement des aérogels de carbone, leur fabrication et leur utilisation. Des modes de réalisation comprennent un matériau de cathode dopé au soufre dans une batterie au lithium-soufre, la cathode étant exempte de collecteur et étant formée d'un aérogel de carbone dérivé de polyimide, monolithique sans liant. L'aérogel de carbone comprend des pores qui entourent le soufre élémentaire et s'adaptent à l'expansion du soufre pendant la conversion en sulfure de lithium. La cathode et l'aérogel de carbone sous-jacent fournissent des propriétés optimales pour une utilisation dans la batterie au lithium-soufre.
Also published as
Latest bibliographic data on file with the International Bureau