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1. WO2020117555 - COMPOSITIONS, ELECTRODES AND LEAD-ACID BATTERIES HAVING IMPROVED LOW-TEMPERATURE PERFORMANCE

Publication Number WO/2020/117555
Publication Date 11.06.2020
International Application No. PCT/US2019/063209
International Filing Date 26.11.2019
IPC
H01M 4/14 2006.01
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
14Electrodes for lead-acid accumulators
H01M 4/62 2006.01
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
C01B 32/00 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
H01M 10/06 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
06Lead-acid accumulators
CPC
H01M 10/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
06Lead-acid accumulators
H01M 4/14
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
14Electrodes for lead-acid accumulators
H01M 4/625
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
624Electric conductive fillers
625Carbon or graphite
H01M 4/627
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
627Expanders for lead-acid accumulators
Applicants
  • CABOT CORPORATION [US]/[US]
Inventors
  • ATANASSOVA, Paolina
  • DUPASQUIER, Aurelien L.
  • KONG, Tao
Agents
  • NGUYEN, Tu N.
Priority Data
62/774,96904.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITIONS, ELECTRODES AND LEAD-ACID BATTERIES HAVING IMPROVED LOW-TEMPERATURE PERFORMANCE
(FR) COMPOSITIONS, ÉLECTRODES ET BATTERIES AU PLOMB-ACIDE AYANT UNE PERFORMANCE À BASSE TEMPÉRATURE AMÉLIORÉE
Abstract
(EN)
A composition suitable for a negative plate of lead-acid battery includes (a) a lead-based active material; (b) at least one material selected from the group consisting of a lignosulfonate and barium sulfate; and (c1) carbon black particles having a Brunauer-Emmett-Teller (BET) surface area greater than or equal to 90 m2/g and less than or equal to 900 m2/g, and an oil adsorption number (OAN) greater than or equal to 150 mL/100g and less than or equal to 300 mL/100g, or (c2) carbon black particles having a BET surface area greater than or equal to 40 m2/g and less than or equal to 500 m2/g, and graphenes particles. The composition has a theoretical negative active mass (NAM) BET surface area greater than or equal to 0.75 m2/g and less than or equal to 2 m2/g. The compositions can be used in electrodes, e.g., those used in lead-acid batteries.
(FR)
Composition appropriée pour une plaque négative de batterie au plomb-acide comprenant (a) un matériau actif à base de plomb ; (b) au moins un matériau choisi dans le groupe constitué d'un lignosulfonate et de sulfate de baryum ; et (c1) des particules de noir de carbone ayant une superficie Brunauer-Emmett-Teller (BET) supérieure ou égale à 90 m2/g et inférieure ou égale à 900 m2/g, et un indice d'adsorption d'huile (OAN) supérieur ou égal à 150 mL/100 g et inférieur ou égal à 300 mL/100 g, ou (c2) des particules de noir de carbone ayant une surface BET supérieure ou égale à 40 m2/g et inférieure ou égale à 500 m2/g, et des particules de graphène. La composition présente une superficie BET de masse active négative (NAM) théorique supérieure ou égale à 0,75 m2/g et inférieure ou égale à 2 m2/g. Les compositions peuvent être utilisées dans des électrodes, par exemple celles utilisées dans des batteries au plomb-acide.
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