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1. WO2022126254 - METHODS AND SYSTEMS FOR TEMPERATURE-BASED BATTERY CHARGING

Publication Number WO/2022/126254
Publication Date 23.06.2022
International Application No. PCT/CA2021/051800
International Filing Date 14.12.2021
IPC
H01M 10/44 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 10/48 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
48Accumulators combined with arrangements for measuring, testing or indicating condition, e.g. level or density of the electrolyte
H01M 10/637 2014.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
60Heating or cooling; Temperature control
63Control systems
637characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
Applicants
  • GBATTERIES ENERGY CANADA INC. [CA]/[CA]
Inventors
  • SHERSTYUK, Mykola
  • TKACHENKO, Oleksandr
Agents
  • CHAWLA, Jivitesh
Priority Data
63/126,09716.12.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND SYSTEMS FOR TEMPERATURE-BASED BATTERY CHARGING
(FR) PROCÉDÉS ET SYSTÈMES DE CHARGE DE BATTERIE SUR LA BASE DE LA TEMPÉRATURE
Abstract
(EN) Disclosed are methods, systems, and devices for charging a battery pack based on a temperature of the battery pack. The temperature of the battery pack is determined and compared with a reference temperature value. In response to determining that the temperature of the battery pack is less than the reference temperature value, heating-optimized pulses, having a first frequency, are applied to the battery pack. The heating-optimized pulses comprise a sequence of alternating positive and negative pulses, and carry a net positive charge. Concurrent to applying the heating-optimized pulses to the battery pack, the temperature of the battery pack is determined. In response to determining that the temperature of the battery pack is more than the reference temperature value, charging current is applied to the battery pack.
(FR) L’invention concerne des procédés, des systèmes, et des dispositifs destinés à charger un bloc-batterie sur la base d’une température du bloc-batterie. La température du bloc-batterie est déterminée et comparée à une valeur de température de référence. En réponse à la détermination que la température du bloc-batterie est inférieure à la valeur de température de référence, des impulsions optimisées en chauffage, ayant une première fréquence, sont appliquées au bloc-batterie. Les impulsions optimisées en chauffage comprennent une séquence d’impulsions alternativement positives et négatives, et portent une charge nette positive. Tout en appliquant les impulsions optimisées en chauffage au bloc-batterie, la température du bloc-batterie est déterminée. En réponse à la détermination que la température du bloc-batterie est supérieure à la valeur de température de référence, un courant de charge est appliqué au bloc-batterie.
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