PL443714A1 - Method of balancing batteries - Google Patents

Method of balancing batteries

Info

Publication number
PL443714A1
PL443714A1 PL443714A PL44371423A PL443714A1 PL 443714 A1 PL443714 A1 PL 443714A1 PL 443714 A PL443714 A PL 443714A PL 44371423 A PL44371423 A PL 44371423A PL 443714 A1 PL443714 A1 PL 443714A1
Authority
PL
Poland
Prior art keywords
batteries
charged
charging
balancing
stage
Prior art date
Application number
PL443714A
Other languages
Polish (pl)
Inventor
Marcin Kontek
Original Assignee
Marcin Kontek
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marcin Kontek filed Critical Marcin Kontek
Priority to PL443714A priority Critical patent/PL443714A1/en
Publication of PL443714A1 publication Critical patent/PL443714A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/22—Balancing the charge of battery modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
    • H02J7/52—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially for charge balancing, e.g. equalisation of charge between batteries
    • H02J7/54—Passive balancing, e.g. using resistors or parallel MOSFETs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • H02J7/82—Control of state of charge [SOC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

Sposób balansowania akumulatorów typu litowo-żelazowo-fosforanowego (LFP) składających się z pakietów ogniw 4S, czyli czterech ogniw połączonych szeregowo, w którym balansuje się co najmniej dwa takie akumulatory połączone szeregowo, przy czym proces balansowania jest balansowaniem pasywnym, w którym prąd doładowywania Ib z ładowarki podaje się na doładowywane akumulatory, a w przypadku akumulatorów naładowanych, prąd Ib przepływa przez układ rezystorów, gdzie wytraca się w postaci ciepła i w pierwszym etapie sposobu akumulatory podłącza się do ładowarki o napięciu wyjściowym Uc wynoszącym od 14,3 do 14,8 x ilość akumulatorów połączonych szeregowo [V] i ładuje się akumulatory prądem ładowania Ic i w drugim etapie akumulator, który jako pierwszy osiąga wartość napięcia U1 staje się akumulatorem naładowanym i przestaje się go ładować, a pozostałe akumulatory doładowuje się prądem doładowywania Ib i w kolejnych etapach przestaje się doładowywać kolejne akumulatory, które osiągają wartość napięcia U1, tak długo aż wszystkie akumulatory osiągną wartość napięcia U1, kiedy to w ostatnim etapie kończy się proces balansowania i ładowania akumulatorów, przy czym, jeżeli w dowolnym etapie napięcie na dowolnym akumulatorze naładowanym spadnie poniżej wartości U2, ponownie doładowuje się ten akumulator prądem doładowywania Ib.A method of balancing lithium-iron-phosphate (LFP) batteries consisting of 4S cell packs, i.e. four cells connected in series, in which at least two such batteries connected in series are balanced, and the balancing process is passive balancing in which the charging current Ib from the charger is fed to the recharged batteries, and in the case of charged batteries, the current Ib flows through the resistor system, where it is lost in the form of heat and in the first stage of the method, the batteries are connected to a charger with an output voltage Uc ranging from 14.3 to 14.8 x the quantity batteries connected in series [V] and the batteries are charged with the charging current Ic and in the second stage the battery that first reaches the voltage value U1 becomes a charged battery and it is stopped charging, and the remaining batteries are charged with the charging current Ib and in subsequent stages the charging of other batteries is stopped batteries that reach the U1 voltage value until all batteries reach the U1 voltage value, at which point the process of balancing and charging the batteries ends in the last stage, and if at any stage the voltage on any charged battery drops below the U2 value, it is recharged This battery is charged with charging current Ib.

PL443714A 2023-02-08 2023-02-08 Method of balancing batteries PL443714A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL443714A PL443714A1 (en) 2023-02-08 2023-02-08 Method of balancing batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL443714A PL443714A1 (en) 2023-02-08 2023-02-08 Method of balancing batteries

Publications (1)

Publication Number Publication Date
PL443714A1 true PL443714A1 (en) 2024-03-25

Family

ID=90471947

Family Applications (1)

Application Number Title Priority Date Filing Date
PL443714A PL443714A1 (en) 2023-02-08 2023-02-08 Method of balancing batteries

Country Status (1)

Country Link
PL (1) PL443714A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022182760A2 (en) * 2021-02-23 2022-09-01 The Noco Company Method of battery balancing an electrical series string of lithium-ion batteries, and system thereof
CN115123022A (en) * 2022-06-22 2022-09-30 力神（青岛）新能源有限公司 Passive equalization control method for lithium iron battery system of electric vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022182760A2 (en) * 2021-02-23 2022-09-01 The Noco Company Method of battery balancing an electrical series string of lithium-ion batteries, and system thereof
CN115123022A (en) * 2022-06-22 2022-09-30 力神（青岛）新能源有限公司 Passive equalization control method for lithium iron battery system of electric vehicle

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