JPS63268445A - Quick charging method of nickel-cadmium secondary battery - Google Patents

Quick charging method of nickel-cadmium secondary battery

Info

Publication number
JPS63268445A
JPS63268445A JP62099699A JP9969987A JPS63268445A JP S63268445 A JPS63268445 A JP S63268445A JP 62099699 A JP62099699 A JP 62099699A JP 9969987 A JP9969987 A JP 9969987A JP S63268445 A JPS63268445 A JP S63268445A
Authority
JP
Japan
Prior art keywords
charging
internal pressure
quick charge
nickel
amplifier
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP62099699A
Other languages
Japanese (ja)
Inventor
Kuniaki Satou
晋亮 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP62099699A priority Critical patent/JPS63268445A/en
Publication of JPS63268445A publication Critical patent/JPS63268445A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE:To enable quick charge, exceeding the safety margin of conventional quick charge by detecting the increase of internal pressure and interrupting charging currents. CONSTITUTION:Charging currents I0 are caused to flow between a positive electrode 1a and a negative electrode 1b for a nickel-cadmium secondary battery, in which a strain gage 2 is stuck onto the surface of a vessel, through a switch 7 from a rectifying power 6, and quick charge is conducted. When the vessel is elongated due to the rise of internal pressure by a gas in the vessel by quick charge, the resistance of the strain gage 2 changes, and voltage is generated in a Wheatstone bridge 3 and input to an amplifier 4. An output from the amplifier 4 is compared with reference voltage 5a by a comparator 5, and an output from the comparator 5 turns the switch 7 OFF when the output from the amplifier 4 exceeds reference voltage 5a or more.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、密閉形のニッケル・カドミウム2次電池の急
速充電方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for rapidly charging a sealed nickel-cadmium secondary battery.

〔従来の技術〕[Conventional technology]

密閉形ニッケル・カドミウム2次電池は、電流一定の条
件で充電するが、充電末期には温度が上昇する。したが
って、過充電防止のために、温度センサを容器表面に取
付け、温度上昇を検知して、充電終了時間を定めていた
Sealed nickel-cadmium secondary batteries are charged under conditions where the current is constant, but the temperature rises at the end of charging. Therefore, in order to prevent overcharging, a temperature sensor is attached to the surface of the container to detect the temperature rise and determine the charging end time.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

電池容量に比し小さな電流で長時間の充電を行なう標準
充電では、充電終了判定は上記温度上昇による検知でよ
いが、急速充電では、ガス発生による内圧の上昇が温度
上昇より先だっておこる。
In standard charging, in which charging is performed for a long time with a small current compared to the battery capacity, the end of charging can be determined by detecting the temperature rise, but in rapid charging, the internal pressure rise due to gas generation occurs before the temperature rise.

そのため充電速度の安全限度を定めたり、ガス発生のと
きの安全弁が開きガス抜き穴からガスを逃がすようにし
ている。しかし安全弁が度々作動すると、内部の水が失
われるので電池性能が劣化する。
For this reason, safety limits are set for the charging speed, and safety valves open when gas is generated to allow gas to escape through vent holes. However, if the safety valve is activated frequently, the water inside is lost, which deteriorates battery performance.

本発明の目的は、充電速度は減少させずに、しかも電池
性能の劣化のないニッケル・カドミウム2次電池の急速
充電方法を提供することにある。
An object of the present invention is to provide a method for rapidly charging a nickel-cadmium secondary battery without reducing the charging speed and without deteriorating battery performance.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の充電方法では、ガス発生による内圧の上昇から
充電末期の判定を行なう。すなわち容器の内圧上昇を歪
ゲージで検知し、この歪ゲージの検知出力を充電制御に
用いるようにする。
In the charging method of the present invention, the end of charging is determined from the increase in internal pressure due to gas generation. That is, an increase in the internal pressure of the container is detected by a strain gauge, and the detection output of this strain gauge is used for charging control.

〔作用〕[Effect]

第2図は、充電時間の経過に対する電池の温度上昇・内
圧上昇および本発明の充電制御を概念的に説明する図で
ある。充電は急速充電の充電電流Io一定で行なう。横
軸が時間で、温度と内圧の傾向が示されている。温度は
12時間で上7昇を始めるが、内圧はその前のt。時間
から上昇する。
FIG. 2 is a diagram conceptually explaining the rise in temperature and internal pressure of the battery over the course of charging time and the charge control of the present invention. Charging is performed with a constant charging current Io for quick charging. The horizontal axis is time, and trends in temperature and internal pressure are shown. The temperature begins to rise in 12 hours, but the internal pressure remains at t. Rise from time.

本発明では12時間より前の時間で内圧があらかじめ定
めた内圧値PLになった1、時間で充電電流■。を遮断
または低い充電電流■、にする。
In the present invention, the charging current is 1 when the internal pressure reaches the predetermined internal pressure value PL 12 hours ago. ■ Cut off or lower the charging current.

したがって、充電電流I0は充分な大きさになし、急速
な充電を、電池性能の劣化なく実行できる。
Therefore, the charging current I0 can be set to a sufficient magnitude, and rapid charging can be performed without degrading battery performance.

〔実施例〕〔Example〕

以下、図面を参照して、本発明の一実施例につき説明す
る。第1図が実施例の回路ブロック図である。lはニッ
ケル・カドミウム2次電池で、その容器表面に歪ゲージ
2を貼付けである。正極laとアースに接続されてルす
る負極lb間に、整流電源6からスイッチ7を介して充
電電流I0を流し急速充電を行なう。歪ゲージ2は、急
速充電による容器内のガスによる内圧上昇で、容器が伸
長すると、その歪の程度を抵抗の変化として把握する。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a circuit block diagram of an embodiment. 1 is a nickel-cadmium secondary battery, and a strain gauge 2 is attached to the surface of the container. A charging current I0 is caused to flow from a rectified power supply 6 through a switch 7 between a positive electrode la and a negative electrode lb connected to the ground, thereby performing rapid charging. When the container expands due to an increase in internal pressure due to gas inside the container due to rapid charging, the strain gauge 2 detects the degree of strain as a change in resistance.

歪ゲージ2の抵抗変化はホイットストーンプリッジ3に
より検出され、増幅器4の入力電圧となる。3aは直流
電源である。増幅器4により増幅された電圧を比較器5
により、あらかじめ定めた規定電圧5aと比較し、規定
電圧5aを超えたときに、スイッチ7をオフとする。し
たがって、電池1を充電していた電流I。が遮断される
The resistance change of the strain gauge 2 is detected by the whetstone bridge 3 and becomes the input voltage of the amplifier 4. 3a is a DC power supply. The voltage amplified by the amplifier 4 is transferred to the comparator 5.
The voltage is compared with a predetermined specified voltage 5a, and when the specified voltage 5a is exceeded, the switch 7 is turned off. Therefore, the current I that was charging the battery 1. is blocked.

比較器5の規定電圧5aは、容器内圧があらかじめ定め
たPL(第2図)に相応するようにしであるから、第2
図のように充電電流I0をt1時間で遮断するごとにな
る。
The specified voltage 5a of the comparator 5 is set so that the internal pressure of the container corresponds to the predetermined PL (Fig. 2).
As shown in the figure, the charging current I0 is cut off every time t1.

上記実施例では1.時間で充電電流I0を遮断したが、
遮断せず、電池容量の1/10程度の通常充電にして、
温度上昇が一定値になるまで充電するようにしてもよい
In the above embodiment, 1. I cut off the charging current I0 with time, but
Do not shut off, charge normally to about 1/10 of battery capacity,
Charging may be performed until the temperature rise reaches a constant value.

〔発明の効果〕〔Effect of the invention〕

以上、説明したように、本発明は、急速充電の場合に問
題になる内圧上昇を歪ゲージで把握し、一定の内圧上昇
となったときに、充電電流を遮断、または低電流とする
ことにより、従来の急速充電の安全限度を超えて、しか
も電池性能の劣化をまねかず急速に充電することを可能
としたものである。
As explained above, the present invention uses a strain gauge to grasp the internal pressure rise that becomes a problem in the case of rapid charging, and when the internal pressure rises to a certain level, the charging current is cut off or reduced to a low current. This makes it possible to charge the battery rapidly, exceeding the safety limits of conventional rapid charging, and without degrading battery performance.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の回路プロ・ツク図、第2図
は充電特性と、本発明の充電方法を説明するための図で
ある。 l−・−電池にニッケル・カドミウム2次電池)、1a
−正極、  1b・−負極、 2−歪ゲージ、3−ホイソトストーンブリッジ、4−増
幅器、 5・・−比較器、 6−・整流電源、 7・・−スイッチ。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a diagram for explaining charging characteristics and the charging method of the present invention. l-・- battery (nickel cadmium secondary battery), 1a
-Positive pole, 1b - Negative pole, 2-Strain gauge, 3-Hoisotostone bridge, 4-Amplifier, 5...-Comparator, 6--Rectifier power supply, 7...-Switch.

Claims (1)

【特許請求の範囲】[Claims] 容器の内圧上昇を歪ゲージで検知し、この歪ゲージの検
知出力を充電制御に用いることを特徴とするニッケル・
カドミウム2次電池の急速充電方法。
A nickel battery characterized by detecting the rise in internal pressure of the container with a strain gauge and using the detection output of this strain gauge for charging control.
Quick charging method for cadmium secondary batteries.
JP62099699A 1987-04-24 1987-04-24 Quick charging method of nickel-cadmium secondary battery Pending JPS63268445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62099699A JPS63268445A (en) 1987-04-24 1987-04-24 Quick charging method of nickel-cadmium secondary battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62099699A JPS63268445A (en) 1987-04-24 1987-04-24 Quick charging method of nickel-cadmium secondary battery

Publications (1)

Publication Number Publication Date
JPS63268445A true JPS63268445A (en) 1988-11-07

Family

ID=14254299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62099699A Pending JPS63268445A (en) 1987-04-24 1987-04-24 Quick charging method of nickel-cadmium secondary battery

Country Status (1)

Country Link
JP (1) JPS63268445A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03124980A (en) * 1989-10-06 1991-05-28 Cosmo Tec Kk Discharge pressure control device for engine-driven painting pump
US5640077A (en) * 1995-04-30 1997-06-17 U.S. Philips Corporation Battery recharging apparatus
US5680029A (en) * 1995-04-28 1997-10-21 U.S. Philips Corporation Apparatus for recharging a battery
US5694018A (en) * 1995-04-30 1997-12-02 U.S. Philips Corporation Apparatus for charging a battery
JP2000340264A (en) * 1999-05-31 2000-12-08 Sanyo Electric Co Ltd Thin type battery and pack battery incorporating thin type battery
KR100336404B1 (en) * 1992-08-31 2002-08-14 신코덴키 가부시키가이샤 Battery charger of unmanned carriage
WO2002099922A1 (en) * 2001-06-05 2002-12-12 Japan Storage Battery Co., Ltd. Storage battery device and power source apparatus comprising it
JP2008529213A (en) * 2005-01-20 2008-07-31 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Apparatus and method for monitoring pressure in battery cell
JP2010011619A (en) * 2008-06-26 2010-01-14 Panasonic Corp Charging control method and charge controller of battery
JP2011078180A (en) * 2009-09-29 2011-04-14 Nec Personal Products Co Ltd Charge controller, charge control method, program, and recording medium
WO2014100937A1 (en) * 2012-12-24 2014-07-03 Schneider Electric It Corporation Method for monitoring battery gas pressure and adjusting charging parameters
JP2016524780A (en) * 2013-04-23 2016-08-18 コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ Accumulator management device
WO2018138969A1 (en) * 2017-01-27 2018-08-02 株式会社村田製作所 Method for charging/discharging secondary battery, method for detecting deterioration of secondary battery, method for detecting charge abnormality of secondary battery, and charge/discharge control device
JP2019509003A (en) * 2016-02-17 2019-03-28 トヨタ・モーター・ヨーロッパToyota Motor Europe System and method for battery charge control

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03124980A (en) * 1989-10-06 1991-05-28 Cosmo Tec Kk Discharge pressure control device for engine-driven painting pump
KR100336404B1 (en) * 1992-08-31 2002-08-14 신코덴키 가부시키가이샤 Battery charger of unmanned carriage
US5680029A (en) * 1995-04-28 1997-10-21 U.S. Philips Corporation Apparatus for recharging a battery
US5640077A (en) * 1995-04-30 1997-06-17 U.S. Philips Corporation Battery recharging apparatus
US5694018A (en) * 1995-04-30 1997-12-02 U.S. Philips Corporation Apparatus for charging a battery
JP2000340264A (en) * 1999-05-31 2000-12-08 Sanyo Electric Co Ltd Thin type battery and pack battery incorporating thin type battery
JP4518591B2 (en) * 1999-05-31 2010-08-04 三洋電機株式会社 Battery pack with built-in thin battery
US7510798B2 (en) 2001-06-05 2009-03-31 Gs Yuasa Corporation Storage battery device and power source apparatus comprising it
WO2002099922A1 (en) * 2001-06-05 2002-12-12 Japan Storage Battery Co., Ltd. Storage battery device and power source apparatus comprising it
JP2008529213A (en) * 2005-01-20 2008-07-31 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Apparatus and method for monitoring pressure in battery cell
JP2010011619A (en) * 2008-06-26 2010-01-14 Panasonic Corp Charging control method and charge controller of battery
JP2011078180A (en) * 2009-09-29 2011-04-14 Nec Personal Products Co Ltd Charge controller, charge control method, program, and recording medium
WO2014100937A1 (en) * 2012-12-24 2014-07-03 Schneider Electric It Corporation Method for monitoring battery gas pressure and adjusting charging parameters
JP2016524780A (en) * 2013-04-23 2016-08-18 コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ Accumulator management device
US10020546B2 (en) 2013-04-23 2018-07-10 Commissariat à l'énergie atomique et aux énergies alternatives Device for managing an accumulator
JP2019509003A (en) * 2016-02-17 2019-03-28 トヨタ・モーター・ヨーロッパToyota Motor Europe System and method for battery charge control
WO2018138969A1 (en) * 2017-01-27 2018-08-02 株式会社村田製作所 Method for charging/discharging secondary battery, method for detecting deterioration of secondary battery, method for detecting charge abnormality of secondary battery, and charge/discharge control device
JPWO2018138969A1 (en) * 2017-01-27 2019-11-07 株式会社村田製作所 Secondary battery charge / discharge method, secondary battery deterioration detection method, secondary battery charge abnormality detection method, and charge / discharge control device
US11431039B2 (en) 2017-01-27 2022-08-30 Murata Manufacturing Co., Ltd. Method of charging and discharging secondary battery, method of detecting deterioration in secondary battery, method of detecting charging abnormality of secondary battery, and charge and discharge control device

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