NZ735701A - Storage battery unit and electricity storage system - Google Patents

Storage battery unit and electricity storage system

Info

Publication number
NZ735701A
NZ735701A NZ735701A NZ73570116A NZ735701A NZ 735701 A NZ735701 A NZ 735701A NZ 735701 A NZ735701 A NZ 735701A NZ 73570116 A NZ73570116 A NZ 73570116A NZ 735701 A NZ735701 A NZ 735701A
Authority
NZ
New Zealand
Prior art keywords
storage battery
battery modules
communication unit
power
storage
Prior art date
Application number
NZ735701A
Inventor
Makoto Ishida
Yuichiro Teramoto
Keizo Nishikawa
Sadahito Okada
Original Assignee
Panasonic Ip Man Co Ltd
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 Panasonic Ip Man Co Ltd filed Critical Panasonic Ip Man Co Ltd
Publication of NZ735701A publication Critical patent/NZ735701A/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
    • H01M10/44—Methods for charging or discharging
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

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

Abstract

Conventionally, in a storage battery unit including a plurality of storage battery modules which are electrically connected in series, the circuits included in each storage battery module receive power supplied from the storage battery in the storage battery module. When, for example, the operating states, the operating conditions, or the components of the circuits in the respective monitoring devices vary, the power consumed by each storage battery module (assembled battery unit) also varies. This leads to variations in remaining amount of the power charged in the cells of each storage battery module, resulting in an inefficient use of the storage battery module. The present invention therefore aims to overcome the drawbacks of the current art by providing a storage battery unit and an electricity storage system each allows an efficient use of storage battery modules. The present invention relates to a storage battery unit comprising a plurality of storage battery modules and a power supply; wherein each of the plurality of storage battery modules includes a storage battery and a communication unit which transmits information related to at least one of charging and discharging of the storage battery, the storage batteries are electrically connected to each other to form a storage battery group, the power supply is electrically connected to the plurality of storage battery modules, receives a voltage across the storage battery group as an input, and supplies driving power to the communication unit of each of the plurality of storage battery modules, and wherein the communication unit includes a plurality of circuit blocks, each of the plurality of storage battery modules further includes a voltage converter, the power supply supplies the driving power to at least one of the plurality of circuit blocks included in the communication unit of each of the plurality of storage battery modules, and the voltage converter receives an output voltage of the storage battery as an input, steps down the output voltage, and supplies power obtained based on the stepped down voltage to a remaining circuit block which does not receive the driving power among the plurality of circuit blocks included in the communication unit.
NZ735701A 2015-03-27 2016-03-09 Storage battery unit and electricity storage system NZ735701A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015067368 2015-03-27
PCT/JP2016/001277 WO2016157740A1 (en) 2015-03-27 2016-03-09 Storage battery unit and electricity storage system

Publications (1)

Publication Number Publication Date
NZ735701A true NZ735701A (en) 2019-05-31

Family

ID=57004174

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ735701A NZ735701A (en) 2015-03-27 2016-03-09 Storage battery unit and electricity storage system

Country Status (4)

Country Link
JP (1) JP6489332B2 (en)
AU (1) AU2016241607B2 (en)
NZ (1) NZ735701A (en)
WO (1) WO2016157740A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019017162A (en) 2017-07-05 2019-01-31 パナソニックＩｐマネジメント株式会社 Storage battery unit and connector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5641006B2 (en) * 2011-08-31 2014-12-17 ソニー株式会社 Power storage device
JP5694902B2 (en) * 2011-11-10 2015-04-01 株式会社日立製作所 Secondary battery monitoring device
JP2014153131A (en) * 2013-02-06 2014-08-25 Furukawa Electric Co Ltd:The State of charge calculation device, state of charge calculation method and power supply system

Also Published As

Publication number Publication date
AU2016241607B2 (en) 2018-11-29
AU2016241607A1 (en) 2017-10-26
JPWO2016157740A1 (en) 2018-05-31
WO2016157740A1 (en) 2016-10-06
JP6489332B2 (en) 2019-03-27

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