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1. WO2020135481 - BATTERY CHARGING METHOD AND DEVICE

Publication Number WO/2020/135481
Publication Date 02.07.2020
International Application No. PCT/CN2019/128213
International Filing Date 25.12.2019
IPC
H02J 7/00 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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
CPC
H01M 10/44
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 10/443
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
443in response to temperature
H01M 10/48
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
H02J 7/0077
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
007Regulation of charging or discharging current or voltage
0072using semiconductor devices only
0077the charge cycle being terminated in response to electric parameters
H02J 7/0091
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
007Regulation of charging or discharging current or voltage
0072using semiconductor devices only
0088the charge cycle being terminated in response to non-electric parameters
0091in response to temperature of the battery
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 李良昱 LI, Liangyu
  • 李娟 LI, Juan
  • 王平华 WANG, Pinghua
  • 曹勇 CAO, Yong
  • 李阳兴 LI, Yangxing
Priority Data
201811619482.327.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BATTERY CHARGING METHOD AND DEVICE
(FR) PROCÉDÉ ET DISPOSITIF DE CHARGE DE BATTERIE
(ZH) 一种电池充电方法和装置
Abstract
(EN)
A battery charging method. Said method comprises: firstly acquiring battery parameters, the battery parameters comprising electrode parameters of a battery, and then inputting, according to the battery parameters, a battery model represented by an ordinary differential equation, to acquire a safe charging boundary value of the battery after n cycles, the parameters further comprising one or more of structure parameters, manufacturing process parameters, electrical parameters, electrolyte parameters, diaphragm parameters and thermophysical property parameters of the battery, the safe charging boundary value being a maximum charging current at which no lithium precipitation occurs to the battery, under different states of charge (SOCs) and different temperatures, said n being greater than or equal to 2 and less than or equal to N, N being the cycle life of the battery, and said n cycles referring to n cycles selected from 0 to N cycles; and finally according to the current number of cycles of the battery, the current temperature, the current SOC and the safe charging boundary value, obtaining a maximum safe charging current value under the current number of cycles and the current SOC of the battery.
(FR)
L’invention concerne un procédé de charge de batterie. Ledit procédé consiste : d’abord à acquérir des paramètres de batterie, les paramètres de batterie comprenant des paramètres d’électrodes d’une batterie, et puis à entrer, en fonction des paramètres de batterie, un modèle de batterie représenté par une équation différentielle ordinaire, pour acquérir une valeur limite de charge sûre de la batterie après n cycles, les paramètres comprenant en outre un ou plusieurs paramètres parmi des paramètres de structure, des paramètres de processus de fabrication, des paramètres électriques, des paramètres d’électrolyte, des paramètres de diaphragme, et des paramètres de propriétés thermophysiques de la batterie, la valeur limite de charge sûre étant un courant de charge maximal auquel la précipitation de lithium se produit dans la batterie, dans différents états de charge (SOC) et différentes températures, ledit n étant supérieur ou égal à 2 et inférieur ou égal à N, N étant le cycle de vie de la batterie, et lesdits n cycles faisant référence à n cycles sélectionnés entre 0 et N cycles ; et enfin en fonction du nombre actuel de cycles de la batterie, de la température actuelle, du SOC actuel et de la valeur limite de charge sûre, à obtenir une valeur actuelle de charge sûre maximale avec le nombre actuel de cycles et le SOC actuel de la batterie.
(ZH)
一种电池充电方法,该方法先获取电池参数,所述电池参数包括电池的电极参数,再根据所述电池参数输入常微分方程所表示的电池模型,获取所述电池n次循环下的安全充电边界值,其中所述参数还包括电池的结构参数、制造工艺参数、电学参数、电解液参数、隔膜参数以及热物性参数中的一个或多个,所述安全充电边界值是包括不同荷电状态SOC和不同温度下所述电池不发生析锂的最大充电电流,所述n大于等于2小于等于N,N为所述电池的循环寿命,所述n次循环是指0至N次循环中选取的n次循环;最后根据所述电池的当前循环次数、当前温度、当前的SOC以及所述安全充电边界值,获得所述电池的当前循环次数以及当前的SOC下的最大安全充电电流值。
Also published as
EP2019904695
Latest bibliographic data on file with the International Bureau