JPS5553075A - Method of indicating life of dry cell for using - Google Patents

Method of indicating life of dry cell for using

Info

Publication number
JPS5553075A
JPS5553075A JP12545078A JP12545078A JPS5553075A JP S5553075 A JPS5553075 A JP S5553075A JP 12545078 A JP12545078 A JP 12545078A JP 12545078 A JP12545078 A JP 12545078A JP S5553075 A JPS5553075 A JP S5553075A
Authority
JP
Japan
Prior art keywords
water
cell
substance
indicator
life
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
JP12545078A
Other languages
Japanese (ja)
Inventor
Hajime Koshimaru
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12545078A priority Critical patent/JPS5553075A/en
Publication of JPS5553075A publication Critical patent/JPS5553075A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02E60/12—

Landscapes

  • Primary Cells (AREA)

Abstract

PURPOSE: To enable the using life of a dry cell to be indicated simple by arranging water absorbing substance having capillary phenomenon at a part of the periphery of a collector in anode mixture, and adding indicator chemicals at one end of the water absorptive substance, and permitting observation from outside the cell.
CONSTITUTION: At a part of the periphery of the carbon collector 2 in anode mixture formed of manganese dioxide, graphite powder, ammonium chloride crystal stored in a cathode zine can 1, water-absorptive substance 6 such as blotting paper and cloth having capillary phenomenon is arranged, and a part of the substance is drawn out to enable the observation from outside the cell by means of transparent cover 7. Into the water-absorptive substance 6, indicator chemicals are added beforehand, and the indicator chemical changes its colour as a result of absorpting water which is generaged at the last period of cell discharge, ane thus the using life of the cell can be indicated. For example, litmus paper as water absorptive substance 6 having sodium carbonate as indicator chemical added is used, and then sodium carbonate is hydrolyzed by the moisture generated at the last period of discharge, and hydrogen ion concentration varies between pH 7∼pH 11, and the litmus paper changes from red to blue.
COPYRIGHT: (C)1980,JPO&Japio
JP12545078A 1978-10-12 1978-10-12 Method of indicating life of dry cell for using Pending JPS5553075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12545078A JPS5553075A (en) 1978-10-12 1978-10-12 Method of indicating life of dry cell for using

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12545078A JPS5553075A (en) 1978-10-12 1978-10-12 Method of indicating life of dry cell for using

Publications (1)

Publication Number Publication Date
JPS5553075A true JPS5553075A (en) 1980-04-18

Family

ID=14910379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12545078A Pending JPS5553075A (en) 1978-10-12 1978-10-12 Method of indicating life of dry cell for using

Country Status (1)

Country Link
JP (1) JPS5553075A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132176A (en) * 1990-05-03 1992-07-21 Gnb Industrial Battery Company Battery state of charge indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132176A (en) * 1990-05-03 1992-07-21 Gnb Industrial Battery Company Battery state of charge indicator

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