Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Plural cells
Reexamination Certificate
1998-08-21
2001-01-16
Nuzzolillo, Maria (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Plural cells
C429S225000, C429S100000, C429S152000, C429S186000
Reexamination Certificate
active
06174619
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
This invention relates to a structure for mounting battery electrode plates in a battery case, and in particular to a structure for mounting battery electrode plates in a battery case so as to prolong the operating life of the battery.
(b) Description the Prior Art
In recent years, applications of batteries have become very popular, especially after the development of motorcycles and automobiles. The lead acid battery has become an indispensable component of such vehicles. As shown in
FIG. 1
, the lead acid battery
10
is mainly comprised of components including a case
11
, a negative plate group
12
, a positive plate group
13
, separators
14
, electrolyte
15
, and a sealing cover
16
. The inside of the battery case
11
can be divided into several cell compartments
112
through partition plate
111
, and each cell compartment
112
is installed with negative plates
12
and positive plates
13
which are made of lead (Pb) and lead bi-oxide (PbO
2
) which are respectively immersed in an electrolyte
15
made of a diluted sulfuric acid (H
2
SO
4
) solution. The negative plates
12
and the positive plates
13
are separated by the separator
14
to avoid short-circuits due to mutual contact. In addition, the plate connectors
121
,
123
of the positive and negative plates
12
,
13
protrude upward, and the plate connectors
121
of the negative plates
12
are series combined with the negative terminal post
122
, while the plate connectors
131
of the positive plates
13
are series combined with the positive terminal post
132
. In addition, the negative terminal posts
122
and the positive terminal posts
132
in different cell compartments
112
can be further respectively series combined by the cell connectors
17
, to respectively provide the electric terminal posts at the top of sealing cover
16
, including a negative terminal post
123
and a positive terminal post
133
. As long as the positive electrode wire (not shown in the figure) is connected to the positive terminal
133
, and the negative electrode wire (not shown in the figure) is connected to the negative terminal
123
, the lead acid battery
10
will provide an electric discharge function. The electric charge/discharge reactions are as follows:
Although the lead acid battery
10
has adequate electric charge/discharge functions, it is disadvantageous in that the battery case
11
is subject to resonant vibrations during charging/discharging operations. Because the negative and positive plates
12
,
13
in fact are supported exclusively by the series combination of the negative terminal post
122
and the positive terminal post
132
at the top of the casing, with no series combination positioning structure being provided at the bottom, the negative and positive plates
12
,
13
are not positioned in a stable manner. As a result, when a resonant vibration occurs, the negative and positive plates
12
,
13
are usually vibrated at the same time, which causes the chemically-active materials to either drop off or to expand, thereby damaging the charging recoverability of the battery
10
and shortening its operating life.
SUMMARY OF THE INVENTION
The objective of the invention is to provide an improved mounting structure for mounting the battery electrode plates within the battery casing, such that the bottoms of the negative and positive plates are respectively series combined with electric conductive or non-conductive materials; thereof the for the improved combining structure between the battery electrode plates and the battery casing, beside that the bottoms of the electrode plates can be series combined with electric conductive or non-conductive materials. To facilitate integration of the bottoms of the plates into the casing, foot slots may be provided at the bottom of the battery casing for insertion of the plate connector. Through the aforesaid structural design, better positioning results for electrode plates can be obtained, and when the series combining straps are made of electric conductive material, the uniformity of electric conduction on the plate can be improved, thereby lengthening the battery operating life.
REFERENCES:
patent: 813582 (1906-02-01), Porter
patent: 3518127 (1970-06-01), Aronson
Bacon & Thomas PLLC
Nuzzolillo Maria
Wills M.
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