JPS6035454A - Method for installing lead storage battery - Google Patents

Abstract

PURPOSE:To prevent any deterioration of the performance of a lead storage battery without requiring any maintenance by attaching a cap in which a solid resistance and its terminals are buried to the battery so as to join the electrode plates together through impedance connection, then sealing the thus obtained body in a case consisting of a base plate and a covering member. CONSTITUTION:A positive and a negative plate 4b and 4a, a current collectors 2 and 3 and a separator 5 are installed in a box-like body 1 with terminals 6 and 7 exposed so as to assemble a retainer-type battery (A) in which the amount of electrolyte is restricted so that any liberated electrolyte does not exist. Next, a cap 8 which consists of a synthetic resin and in which a solid resistance 10 and its terminals are buried is prepared, and the terminals 6 and 7 are joined together through impedance connection by attaching the cap 8 to the battery (A) subjected to formation charging. After that, the thus obtained body is airtightly sealed in an installation case 14 consisting of a base plate 15 and a covering member 16 which consists of a styrene resin. By the means mentioned above, any deterioration of the characteristic is prevented and the battery (A) can be preserved over a long period of time without requiring any maintenance such as auxiliary charging.

Description

Detailed Description of the Invention (1) Industrial Field of Application The present invention relates to a method for storing lead-acid batteries, so-called retainer-equipped lead-acid batteries in which the amount of electrolyte Z is limited so that no free electrolyte exists. It is an object of the present invention to provide a storage method that does not deteriorate the storage characteristics even if left for a long period of time.

((2) The conventional retainer set battery limits the amount of electrolyte and makes the cathode capacity about 10 to 3095 larger than the anode capacity, so that the anode becomes fully charged first during charging, and when overcharging occurs. , oxygen generated from the anode is absorbed and consumed at the cathode.

Normally, this type of battery is subjected to chemical conversion treatment after battery assembly, and is shipped or stored in a fully charged state, and is periodically charged, for example, every 6 months, preferably every 3 months, until it is actually used. It is necessary to re-charge the battery every time and store it in a state close to full.

This means that on average, a lead-acid battery self-discharges about 0.1 to 0.15 cM of the battery capacity per day, and after 6 months, the battery capacity decreases due to self-discharge of about 20 to 3 o96. . That is, 20 to 3095 were discharged. If the discharge products discharged by this self-discharge are activated by charging, in other words, if the battery capacity is recovered T, then supplementary charging is possible! Although it is not necessary for the battery to drop to 1', if left in this self-discharge state for a long period of time, lead sulfate (PbSO4), a discharge product, becomes inactive, resulting in poor charging efficiency and insufficient recovery of capacity. Since this causes a deterioration in battery characteristics, it is necessary to perform maintenance by repeatedly recharging the battery.

However, this maintenance work is not only complicated, but also has the problem that even if supplementary charging is repeated, the capacity is not completely restored.

According to studies conducted by the present inventors, if the battery is left unattended after chemical charging treatment, the battery voltage will gradually decrease by one step due to self-discharge. Self-discharge f2 is accompanied by Pb++ ions in the lead dioxide (Pb02) corrosion layer on the surface of the current collector, and active material pb
The p b+ + ions of o, , and the 804-1 ion in the sulfuric acid (H2SO4) electrolyte chemically bond to form PbS.
If the battery is left for a long period of time, this PbSO4 tends to become inactive, resulting in poor charging efficiency during recharging, insufficient capacity recovery, and deterioration of battery characteristics. Become. These phenomena occur when the period of supplementary charging cidal becomes longer, that is, the period of neglect is longer (I see,
Deterioration increases and is further accelerated by being left in a high temperature atmosphere.

9. Purpose of the Invention The present invention provides a method for storing lead-acid batteries in which the battery characteristics do not deteriorate without requiring complicated maintenance to maintain the battery characteristics by repeated supplementary charging. The purpose is to descend.

2) Structure of the invention 1. It has an anode plate and a separator interposed between the two electrode plates, and the two electrode plates and the separator are impregnated and retained, and the amount of free electrolyte is limited so that substantially no free electrolyte exists. A lead-acid battery equipped with an electrolyte is subjected to a chemical charging treatment, and after that, the lead-acid battery is stored in a storage case made of plywood and a covering material, and the cap that holds the lead-acid battery is stored. 2, an impedance means 2 connectable between the negative and anode terminals of the lead-acid battery is provided in the recess of the cap, and the cap is attached to the lead-acid battery and stored in an impedance-connected state, and the storage battery C between the angle and the anode terminal
It is stored with the Niimbeedans means connected.

1 Water Actual Example il+ is an exterior case for a lead-acid battery according to an embodiment of the present invention, AB
It is shaped like a two-part case molded from S resin. (2), (31 is a cathode/anode f!! electric body which is disposed on the inner surface of the exterior box fi+ facing downwards relative to each other.

(4a) and (4b) are the positive electrode current collectors (2) and (3).
) are interposed between negative and positive picture electrode plates (4a) and (4b), and the negative and positive picture electrode plates (4a) and (4b) have a porous separator (5
) is clamped with appropriate pressure. Then, the negative/positive picture electrode plates (4a), (4b) and the separator (5) are impregnated with an appropriate amount of electrolyte (not shown), and the @Ki exterior box (
The amount of free electrolyte in the electrolyte 11 is regulated so that there is substantially no free electrolyte in the electrolyte.

(61, (7) is exposed at the upper part of the exterior case ti+
These are cathode/anode battery terminal parts, and the cathode terminal part (6) is electrically connected to the cathode current collector (21), and the anode terminal part (71 is electrically connected to the anode current collector (31).

(8) is a synthetic resin cap that covers a part of the exterior case ti+. This cap +81 has a recess (91) in which a solid resistor equivalent to 061C is inserted.
A pair of terminal receptors f111f121 are provided on the inner surface facing the exterior box +11, and the terminal receptors 111 (121 and the solid resistor 001 are connected via a lead wire (131). The terminal receiver 0.1 [3 is the cap F8J and the outer case (1
), it comes into contact with the negative/anode terminal f607).

The nail 0 is a storage case for storing a lead-acid battery that has been subjected to chemical charging treatment and is attached to the cap (8) and the exterior case il+.
It consists of a base plate (151) made of transparent styrene resin and a coated plate (151) formed by vacuum molding of transparent styrene resin.

A chemically charged lead-acid battery has a cap (8) attached to its outer case (1), and negative/positive terminals +61+71.
A solid resistor (IOl is connected as an impedance means in between) is placed on the plywood board, and the coating H'ct6
After I is attached to plywood (15+) by adhesive bonding at ℃ or heat pressure @T, it is shipped from the factory to a store and stored.

(f) Effects of the Invention As described above, the present invention includes an anode plate and a separator interposed between the two electrode plates, and the two electrode plates and the separator are impregnated and retained, and free electrolyte is substantially removed. A lead-acid battery with an electrolyte in an amount limited to π is subjected to a chemical charging process Z and then stored in a storage case consisting of seven base plates and a cover. A cap is provided to partially cover the center of the lead-acid battery, an impedance means connectable between the negative and anode terminals of the lead-acid battery is provided in a recess of the cap, and the cap is attached to the lead-acid battery for impedance connection. Since it is shipped and stored in a storage container, there is no need to carry out operations such as supplementary charging during storage to suppress the generation of inactive YRPBSO4, which is a discharge product, and if necessary, it can be removed from the storage case before use. If the cap according to the present invention having an impedance is removed and charged, normal battery characteristics can be exhibited, and like the cap according to the present invention, the impedance means portion is hollow, and the inside of the resin f: burying method. Because the impedance means (2) is not insert molded, there is no undue pressure due to heat or shrinkage during molding, which greatly improves the reliability of the impedance means itself. Even after the battery is removed from the case, the cap that swings from the impedance means can be attached and removed very easily, and the battery can be reused when stored for a long period of time.

[Brief explanation of drawings]

The first factor fAl is the front view of the lead-acid battery exterior case; (B) is (
I-I side sectional view of Al, 2nd e + AI is a longitudinal sectional view of the cap; (B) is (left side view of AI (111 side view); (C) is a right side view of (Al, 3rd factor fAl is the cap Longitudinal cross-sectional view of a lead-acid modified pond equipped with a fubun; (C) is the left side of (Al
Figure, 4th factor fAl is 6] L of lead S battery when stored in storage case
Top view; (B) is a mm-m sectional view of (Al). (2)... cathode plate, (31... anode plate, (5)...
・Separator, (1)...Exterior box (lead acid battery) 05
1... Base plate, I'161... Covering o, a41...
Storage case, (8)...Cap% (9)...Recess, (6)...Cathode terminal, (7)...Anode terminal, (1
(Solid resistance, (impedance means). Fig. 1 (Bn (△) (B) Procedural amendment (spontaneous) December Z/Day 1, 1988, Indication of the case 1988 Patent application No. 144043 No. 2, Name of the invention: Storage device for lead-acid batteries Relationship with the amended case Name of patent applicant (188) Sanyo Electric Co., Ltd. 4, Agent Address: 2-18 Keihan Hondori, Moriguchi City Contact information゛Telephone (Tokyo) 835-1111 Patent Center Representative Nakagawa 5 Subject of amendment (1) Name of the invention in the specification. (2) Claims in the specification. (3) Details of the invention in the specification. 6. Contents of the amendment (1) ``How to store lead-acid batteries'' in the second line of the first page of the specification.
The text has been corrected to read "lead-acid battery storage device." (2) Amend the claims in the specification as shown in the attached sheet. (3) ■ "Storage method" on page 1, line 19, page 2, line 1, and page 4, line 9 of the specification is "storage device."
and make a curved ball. ◎ Specification page 4, line 14 to page 5, line 1 and 7
From the 8th line to the 15th line of the page, the phrase ``Lead acid/lt! is chemically formed...'' is replaced with ``Lead acid, which is attached to the heel pond and between the negative and anode terminals of the lead acid battery. storage means equipped with impedance means that can be connected to a lead-acid battery, and stores the lead-acid battery in an impedance-connected state.'' θ On page 7, line 19 of the specification, it is stated that "the carrier according to the present invention...
The phrase "a storage device according to the present invention" is amended to read "a cage as a component of the storage means according to the present invention." Scope of claims

Claims (1)

[Claims] (1) A negative and anode plate and a separator interposed between the two electrode plates are impregnated and held in the two electrode plates and the separator, and a limited amount of electrolyte is applied so that there is substantially no free electrolyte. After the lead-acid battery is subjected to a chemical charging process, the lead-acid battery is stored in a storage case consisting of a base plate and a storage case, and a cap is provided to partially cover the lead-acid battery, and the lead-acid battery is A method for storing a lead-acid battery, in which an impedance means connectable between the first terminal and the anode terminal of the lead-acid battery is provided in a recess of the cap, and an N-age cap is attached to the lead-acid battery and stored in an impedance-connected state.