JPH0720843Y2 - Storage battery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a storage battery.

[Conventional technology]

Conventionally, a grid-like frame plate composed of an outer peripheral frame and a plurality of vertical rails that form a plurality of rows of vertical windows in the vertical and horizontal directions, and horizontal rails is provided on the transparent window, and an anode plate and a cathode plate are provided on the transparent window. A first array electrode plate holding frame plate which is arranged alternately, the anode plate and the cathode plate in the reverse order to the above case in these through windows of the grid frame plate of the same configuration,
A plurality of second array electrode plate holding frame plates, which are arranged alternately, are laminated alternately with a separator interposed therebetween, and between the lattice-shaped frame plates which overlap each other, the outer peripheral frame and its vertical and horizontal lattice bars. Liquid-tightly bound with each other, and each pair of the first and second array electrode plate holding frame plates constitutes a cell group arranged in a plurality of rows in the vertical and horizontal directions, and the cell groups are connected in series to form an integral stack. A type storage battery is known as Japanese Patent Publication No. 57-46185.

[Problems to be solved by the device]

Since the conventional storage battery having the above-described configuration has the above-described configuration, it is often found that the heat generated inside during operation, charging and discharging, is difficult to dissipate to the outside air, and becomes high temperature, which adversely affects the operation of the battery. . Further, even if liquid leak occurs between cells, it is difficult to find it. Further, when the storage battery of this formula is configured to obtain a high voltage, a high voltage may be applied between the cells, and if a liquid leak occurs between the cells, a short circuit current flows and the initial capacity cannot be taken out. There is inconvenience such as not being.

[Means for Solving the Problems]

The present invention eliminates the disadvantages of the above type of storage battery, provides a storage battery having a large surface area, improved cooling effect, and excellent operation at high voltage. A first array electrode plate in which an anode plate and a cathode plate are alternately arranged in a grid-like frame plate composed of a plurality of vertical bars and horizontal bars that form a plurality of rows of windows. The holding frame and the grid-shaped frame plate having the same configuration as described above are arranged in the through windows alternately in the reverse order of the case of the first arrangement electrode plate holding frame by reversing the order of the anode plate and the cathode plate. A plurality of second array electrode plate holding frames alternately laminated via a separator, and the lattice-shaped frame plates that overlap each other are liquid-tightly bound to each other by the outer peripheral frame and the internal vertical and horizontal bars. A pair of first and second array electrode plate holding plates to form a cell group arranged in a plurality of rows vertically and horizontally. To form an integrated laminated body composed of a plurality of battery assembly layers, each of which is connected in a meandering series, and penetrates the outer peripheral frame from both ends of the meandering series cell group assembly of each battery assembly layer. Then, the cathode terminal and the anode terminal are led out, the cathode terminal row and the anode terminal row are connected in the laminating direction by straps respectively, and slits are formed in the horizontal rails of each lattice-like frame plate, and the lamination is performed. The slits provided on a large number of grid-like frame plates are aligned in the stacking direction to allow deep slit-like voids to exist.

[Action]

In each battery unit of the present invention, a group of cells arranged vertically and horizontally in a plurality of rows are connected in series in a meandering manner and led out from both ends,
Since the anode terminal rows are connected by the respective straps, a high-current, high-voltage storage battery can be obtained. Moreover, in this storage battery, the slits provided in each lattice-shaped frame plate were aligned in the stacking direction to form a deep slit-like void, so that the surface area of the integrated stack type storage battery was increased and heat dissipation was promoted through the slits. , The cooling effect is improved. Further, the short circuit of the battery due to the leakage of the electrolytic solution is prevented by the slit-shaped void portion, and the leakage of the electrolytic solution can be inspected.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show a first arrayed electrode plate holding frame 1 and a second arrayed electrode plate holding frame plate 2, respectively. The first arrangement electrode plate holding frame 1
Is a grid-like frame plate 3 composed of a rectangular outer peripheral frame 3a and three horizontal rails 3b and five vertical rails 3c crossing the inside thereof in the vertical and horizontal directions, and a rectangular shape by these vertical horizontal rails 3c, 3b. Six transparent windows 4 are arranged in a row and four vertical rows are arranged in a row to form a total of 24 transparent windows 4, 4 ..., from the upper left transparent window 4 to the lower right transparent window 4. , Anode plate P (+), cathode plate N (-)
As shown in the figure, it is constructed in a meandering manner according to the present invention.

The lattice-shaped frame plate 3 is made of a synthetic resin molded body, and the positive electrode plate P and the negative electrode plate N are fixed to each other in these through windows by integrally molding the peripheral edge of the polar plate when molding the frame plate. It is achieved by casting inside. These electrode plates P and N are, as shown in FIG. 3A, an anode plate P and a cathode plate N on the left and right of the thin lead alloy connecting plate 5.
A bipolar connecting plate in which one pair was connected in advance was used.

In this case, at the time of molding each rail of the frame plate 3, the connecting plate 5 is covered and embedded in each rail 3c to be molded. The anode plate P
Is a porous porous substrate filled with an anode active material and dried, and the cathode plate N is a porous porous substrate filled with a cathode active material and dried.

In addition, the slit 6 according to the present invention is provided on the horizontal bar 3b of the three lines.
Are alternately formed on the left and right sides, and the electrode plate array plate portions therebetween are separated from each other by the slits 6. In order to form the slits 6, it is preferable that each of the horizontal rails 3b is formed as a wide strip.

The second array electrode plate holding frame plate 2 has substantially the same configuration as the above-mentioned first array electrode plate holding frame plate 1, but differs in the following points. That is, in the 24 transparent windows 4, 4 ... Of the lattice-shaped frame plate 3 having the same structure as described above,
Although arranged in a meandering manner, the order of the positive and negative plates P and N is the reverse of the order of the first array electrode plate holding frame plate 1, that is,
The cathode plate N and the anode plate P are arranged in this order from the left upper transparent window 4 to the lower right transparent window 4. Further, in this case, the rightmost transparent window 4 in the first row and the rightmost transparent window in the second row are the bipolar plates in which the anode plate P and the cathode plate N are connected above and below the connection plate 5 shown in FIG. 2B. A connecting plate is provided, and similarly, the leftmost transparent window 4 in the second row is provided.
And in the leftmost transparent window 4 of the third row, and further in the rightmost transparent window 4 of the third row and the rightmost transparent window of the fourth row, the bipolar connecting plates shown in FIG. A number of negative and positive plates arranged in a plane are connected in a meandering manner in series.

Then, further, one side of the outer peripheral frame 3a outside each of the cathode plates N and the anode plates P at both ends of the series of negative and anode plates connected in a serpentine manner is liquid-tightly penetrated to the outside. The configuration is different from that of the first arrangement electrode plate holding frame plate 1 in that the ear-shaped cathode terminal 7 and the ear-shaped anode terminal 8 are provided in a protruding manner.

When the first and second arrayed electrode plate holding frame plates 1 and 2 are polymerized, the electrode plates having opposite polarities face each other to form respective cells. Therefore, it goes without saying that the structures may be reversed. Slits 6, 6, 6 formed on the three horizontal rails 3b, 3b, 3b of each lattice-shaped frame plate 3, 3 above
More specifically, the left and right are alternately arranged over substantially the entire length of the horizontal rails 3b, 3b, 3b, leaving the plate portion through which the vertical connecting plates 5, 5, 5 pass. The outer ends of the slits 6 are connected to the frame plates 3, 3
It is more preferable to form the opening end surface 6a communicating with the outside on one side or the other side.

A plurality of the first arrayed electrode plate holding frame plate 1 and the second arrayed electrode plate holding frame plate 2 produced as described above are arranged in fives in the drawing (5
Pairs) are alternately laminated via a separator 9, and the upper and lower lattice-shaped frame plates 3 and 3 that overlap each other are liquid-tight in the outer peripheral frames 3a and 3a in the vertical and horizontal bars 1b, 1b, 1c and 1c. Bind to. It is preferably sealed by heat fusion.

Thus, a laminated body 10 in which ten grid-like frame plates 3 shown in FIG. 4 are integrally bonded in a liquid-tight manner is formed, and the pair of first and second array electrode plate holding frame plates 1 and 2 are provided. , A group of cells 11 arranged vertically and horizontally in a plurality of columns. That is, the polar plates P, N or N, P of opposite polarities arranged on the opposing first and second array polar plate holding frame plates 1 and 2 are polymerized via the separator 9 and the upper and lower liquid tightnesses thereof, respectively. A group of cells 11 having a configuration of being surrounded by a rectangular partition wall composed of bound window frames 3b, 3c is constructed, and the cell group 11 is a meandering voltage connected in series 2V.
An integrated laminate 10 consisting of 5 layers of the battery assembly layer b of
An integral laminated storage battery B is constructed.

Thus, from the five battery assembly layers b to the storage battery B,
As shown in the fourth drawing, five cathode terminals 7 are aligned and projected in the stacking direction and five anode terminals 8 are aligned and projected in the stacking direction on one side surface of the integrated laminate 10 of FIG.
Straps 12 and 13 with phantom lines for each row and 8 rows of anode terminals
A storage battery B having a high voltage of 48V can be obtained by connecting the storage battery B with. Further, in this case, since 10 grid-like frame plates 3 in which slits 6, 6, 6 are alternately arranged on the left and right side in advance are aligned by the slits 6, 6, 6 and integrally laminated and bonded, The laminated storage battery B has deep slit-shaped voids 14
Since 4,14 are formed, it is obtained as a storage battery B having a large meandering surface area, the heat dissipation area is increased, the storage battery is prevented from becoming high heat during charging and discharging, and good battery operation is achieved. Bring

Since each of the deep slit-shaped voids 14 is an open end at the outer end 14a, the cooling effect is increased. Further, these slit-like voids 14 serve for insulation during liquid leakage between parallel series cell groups, prevent short circuit due to high voltage current, and prevent reduction due to short circuit of desired high voltage. Further, through the slit-like void 14, it is possible to check the liquid leak of each cell in the cell rows on both sides thereof.

More preferably, the bottom plate 15 and the cover plate 16 are generally bonded to the bottom surface and the top surface of the laminate 10 at their peripheral edges to cover and protect them. As clearly shown in FIG. 6, each lattice-shaped frame plate 3 is provided with a vertical exhaust hole by a notch in order to remove gas from each electrode plate P, N fixedly attached to each through window 4. 17 are provided, and when the lattice-shaped frame plates 3, 3, ... Are laminated and bound, the respective holes 17 are aligned so as to be pulled out to the top surface of the integrated laminate 10. Further, each hole 17 also serves as a liquid injection hole for injecting and impregnating the electrolyte solution into each cell of all meandering cell groups of the unit battery composed of five layers.

Further, the lid plate 16 is provided with an enclosing frame 18 projecting upward on the peripheral edge thereof as shown in FIGS.
Each of the exhaust pipes 19 of the inner lid 16a has a rubber cap 20 at the top thereof. The outer lid 16b in which the upper surface of the outer lid 16b is attached to the surrounding frame 18 of the inner lid 16a.
When the excess gas is generated in the storage battery B, the rubber cap 20 is pushed up to be evacuated, and the vent 21 provided in the lid 16b is used to gently discharge the gas to the outside.

[Effect of device]

As described above, according to the present invention, the grid-like frame plate having the translucent windows in which the cathode and anode plates are alternately arranged in a meandering pattern and having a plurality of columns arranged in the vertical and horizontal directions is used. In the case of using the same grid-like frame plate as the first arrangement electrode plate holding frame plate in which the negative and positive electrode plates are alternately arranged in the through window, and the negative and positive electrode plates in the through window are the first arrangement electrode plate holding frame plate A cell group in which a plurality of pairs of the second array electrode plate holding frame plates alternately arranged in the reverse order to the above are laminated and mutually liquid-tightly connected to each other by the grid-like frame plates and connected in a serpentine manner. A plurality of layers of a battery assembly layer consisting of a unitary laminated body is formed, the cathode terminal and the anode plate terminal are respectively aligned and projected from the both ends of the unit battery of the meandering cell group of each layer to the outer surface of the laminated body, Since the cathode terminal row and the anode terminal row are connected by respective straps, a high voltage storage battery can be obtained. At the same time, since a deep slit-shaped void is formed in the storage battery due to the alignment of the slits provided in each of the lattice-shaped frame plates, the cooling area of the integrated laminated body is increased, the cooling effect is large, and the deep slit-shaped void is large. This separates the cell rows of each layer on both sides of the slit-like void, prevents battery short circuits between cells due to electrolyte leakage, and prevents the effect of voltage from occurring, and also the electrolyte leakage of cells through the slit void. It has the effect of enabling inspections such as.

Further, when the bottom plate and the lid plate are provided on the bottom surface and the top surface of the integrated laminated body, protection is provided from the external environment, and when the slits which are aligned with the slits are provided on the lid plate, the heat dissipation effect is smoothly and favorably provided. It can be performed and has an effect of bringing convenience such as inspection.

[Brief description of drawings]

The drawings show an example of the present invention. FIG. 1 is a plan view in which a part of an example of a first array electrode plate holding frame plate, which is a component thereof, is cut away, and FIG. Second array electrode plate holding frame plate 1
A plan view in which a part of the example is cut off, FIGS. 3A and 3B,
FIG. 4 is a plan view of the bipolar plate, FIG. 4 is a perspective view of an example of the storage battery of the present invention, FIG. 5 is a sectional view of a part thereof, and FIG. 6 is an enlarged plan view of a part of a plate holding frame plate. FIG. 7 shows a cutting side drawing of a part of the lid plate. 1 ... First array electrode plate holding frame 2 ... Second array electrode plate holding frame 3 ... Lattice frame plate, 3a ... Outer peripheral frame 3b ... Horizontal bar, 3c ... Vertical bar, 4 ... Transparent Window P ... Anode plate (+), N ... Cathode plate (-), 5 ... Connection plate 6 ... Slit, 6a ... Open end 7 ... Ear-shaped cathode terminal, 8 ... Ear-shaped anode terminal 9 ...... Separator, 10 ...... Integrated laminate 11 ...... Cell, b …… Battery assembly layer B …… Battery of the present invention, 12 …… Cathode strap 13 …… Anode strap 14 …… Deep slit-like void 15 …… Bottom plate , 16 …… Lid plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Akihiro Tsubuki 2-16-1 Hoshikawa, Hodogaya-ku, Yokohama-shi, Kanagawa Furukawa Battery Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A positive electrode plate and a negative electrode in a grid-like frame plate composed of an outer peripheral frame and a plurality of vertical bars and horizontal bars that form a plurality of rows of vertical and horizontal windows. A first array electrode plate holding frame formed by alternately arranging plates and a grid-shaped frame plate having the same structure as described above are provided with anodes in the transparent windows, which is the reverse of the case of the first array electrode plate holding frame. A second array electrode plate holding frame, which is formed by alternately arranging the plates and the cathode plates in the reverse order, and alternately stacks a plurality of sheets via separators, and between the lattice-shaped frame plates that are mutually superposed, The outer peripheral frame and the vertical and horizontal rails are liquid-tightly bonded to each other, and a pair of the first and second array electrode plate holding frame plates constitute a cell group arranged in a plurality of rows in the vertical and horizontal directions. Forming a unitary laminated body composed of a plurality of battery assembly layers, each of which is connected in a meandering series, and having a meandering series cell group of each battery assembly layer. Lead the cathode terminal and the anode terminal through the outer peripheral frame from both ends, connect the cathode terminal row and the anode terminal row with straps in the stacking direction, and make slits on the horizontal bars of each grid frame plate. A storage battery formed by aligning slits provided in a large number of laminated grid-like frame plates in the stacking direction to leave deep slit-like voids. 2. The storage battery according to claim 1, wherein a bottom plate and a lid plate are provided on a bottom surface and a top surface of the integrated laminate, and a slit is provided on the lid plate at a position aligned with the slit.