JP6398111B2 - Lead acid battery - Google Patents
Lead acid battery Download PDFInfo
- Publication number
- JP6398111B2 JP6398111B2 JP2013241540A JP2013241540A JP6398111B2 JP 6398111 B2 JP6398111 B2 JP 6398111B2 JP 2013241540 A JP2013241540 A JP 2013241540A JP 2013241540 A JP2013241540 A JP 2013241540A JP 6398111 B2 JP6398111 B2 JP 6398111B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- battery
- battery case
- positive electrode
- negative electrode
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Description
本発明は、鉛蓄電池に関するものである。 The present invention relates to a lead-acid battery.
鉛蓄電池は、信頼性、価格の安さから産業用、民生用に広く用いられており、特に自動車用鉛蓄電池（バッテリー）の需要が多い。 Lead storage batteries are widely used for industrial use and consumer use because of their reliability and low price. In particular, there is a great demand for lead storage batteries (batteries) for automobiles.
従来、自動車用鉛蓄電池では、鉛合金の格子体に所定の活物質ペーストを充填したペースト式極板が用いられて、極板には、正極板と負極板がある。鉛蓄電池（以下電池と略す）は、前記正極板と負極板を、合成樹脂製のセパレータを介して交互に積層し、正極板同士および負極板同士それぞれの集電部を溶接した極板群を構成単位としている。 2. Description of the Related Art Conventionally, a lead-acid battery for an automobile uses a paste type electrode plate in which a predetermined active material paste is filled in a lead alloy lattice, and the electrode plate includes a positive electrode plate and a negative electrode plate. A lead-acid battery (hereinafter abbreviated as a battery) is an electrode plate group in which the positive electrode plate and the negative electrode plate are alternately laminated via a synthetic resin separator, and the current collectors of the positive electrode plates and the negative electrode plates are welded to each other. It is a structural unit.
前記セパレータは、合成樹脂製の微多孔性シートを二つ折りして、両側部をシールして袋状にした、いわゆる袋セパレータが用いられている。袋セパレータに極板を挿入することで、正極板と負極板の間を確実に隔離することができる。 As the separator, a so-called bag separator is used in which a microporous sheet made of a synthetic resin is folded in two and sealed on both sides to form a bag. By inserting the electrode plate into the bag separator, the positive electrode plate and the negative electrode plate can be reliably separated.
袋セパレータで包み込む極板は、正極板、負極板どちらでもよく、両方のタイプの電池がある。正極板を袋セパレータで包み込むタイプの電池は、高温下で使用されると正極板が腐食、変形し、袋セパレータを突き破る場合がある。このことを防止するために、正極板の代わりに負極板をセパレータで包み込むことにより、セパレータの突き破りを防止する構成の電池がある。 The positive electrode plate and negative electrode plate may be enclosed by the bag separator, and both types of batteries are available. When the battery of the type in which the positive electrode plate is wrapped with a bag separator is used at a high temperature, the positive electrode plate may corrode and deform, and may break through the bag separator. In order to prevent this, there is a battery configured to prevent breakage of the separator by wrapping the negative electrode plate with the separator instead of the positive electrode plate.
近年の自動車は電装品が増加しており、電池への負荷が大きくなり、電池の放電量が多くなっている。これは、電池の放電深度（Ｄｅｐｔｈ ｏｆ Ｄｉｓｃｈａｒｇｅ）が深くなることである。このような状況下では、正極活物質の軟化が進行し、徐々に格子体から活物質が脱落していく。前記脱落した活物質は、電解液（希硫酸）中に浮遊し、電池底部に沈殿する。 The number of electrical components in recent automobiles has increased, the load on the battery has increased, and the amount of battery discharge has increased. This means that the depth of discharge of the battery becomes deeper. Under such circumstances, the softening of the positive electrode active material proceeds, and the active material gradually falls off the lattice body. The dropped active material floats in the electrolytic solution (dilute sulfuric acid) and precipitates at the bottom of the battery.
前記脱落した活物質は、電池充電中のガス発生によって、電解液中を極板群の上部にまで舞い上げられる。すると、前記活物質は、正極板、負極板の上部に付着、堆積し、短絡を引き起こす。その結果、電池が短寿命となる問題があった。 The fallen active material is swollen in the electrolyte up to the upper part of the electrode group by gas generation during battery charging. Then, the active material adheres to and accumulates on the positive and negative electrode plates, causing a short circuit. As a result, there is a problem that the battery has a short life.
特許文献１では、正極板と袋セパレータに収納された負極板を交互に積層してなる極板群を備えた鉛蓄電池において、極板群の外側に負極板と電気的に接続された脱落活物質捕捉用の電極部材を設け、極板群上部での脱落活物質の付着による内部短絡を防止する技術が開示されている。 In Patent Document 1, in a lead-acid battery including an electrode plate group in which a positive electrode plate and negative electrode plates accommodated in a bag separator are alternately stacked, a drop-off activity electrically connected to the negative electrode plate outside the electrode plate group. There is disclosed a technique for providing an electrode member for capturing a substance and preventing an internal short circuit due to adhesion of a dropping active material on the upper part of the electrode plate group.
しかしながら、特許文献１の脱落活物質補足用の電極部材を設けても、脱落した活物質が、すべて前記電極部材に捕捉されるとは考えにくい。それは、前記電極部材が実質負極板と同じ構成とあるが、脱落した活物質をガス発生により舞い上げる力は、負極板が脱落した正極活物質を捕捉する力より大きいためである。 However, even if the electrode member for supplementing the fallen active material of Patent Document 1 is provided, it is unlikely that all of the fallen active material is captured by the electrode member. This is because the electrode member has substantially the same configuration as that of the negative electrode plate, but the force of raising the dropped active material by gas generation is greater than the force of the negative electrode plate capturing the dropped positive electrode active material.
従って、袋セパレータに収納された負極板にも脱落した活物質が付着し、堆積して、袋セパレータに収納された負極板をまたいで正極板と接触して短絡する可能性がある。 Therefore, the dropped active material may adhere to and accumulate on the negative electrode plate accommodated in the bag separator, and may contact the positive electrode plate across the negative electrode plate accommodated in the bag separator to cause a short circuit.
本発明の目的は、脱落した活物質による極板群上部での短絡を防止し、サイクル特性に優れた電池を提供することである。 An object of the present invention is to provide a battery excellent in cycle characteristics by preventing a short circuit at the upper part of the electrode plate group due to the dropped active material.
そこで本発明は、上記課題を解決するために以下の構成とする。
（第１の発明）正極板と袋セパレータで包み込まれた負極板を交互に積層し、前記正極板同士および負極板同士それぞれの集電部を溶接した極板群を、複数のセル室を有する電槽に収納した鉛蓄電池において、前記電槽のセル室には壁面にリブを設けず、かつ、化成後の極板群厚みｂと、前記セル室の相対する壁面間の内寸ａとの比率が、０．８５＜ｂ/ａ＜１．０の範囲にあることを特徴とする。
（第２の発明）第１の発明において、０．９０≦ｂ/ａ≦１．０の範囲にあることを特徴とする。
Therefore, the present invention has the following configuration in order to solve the above problems.
(First invention) A positive electrode plate and negative electrode plates wrapped in a bag separator are alternately laminated, and the electrode plate group in which the positive electrode plates and the negative electrode plates are welded to each other has a plurality of cell chambers. In the lead-acid battery stored in the battery case, the cell chamber of the battery case is not provided with ribs on the wall surface, and the electrode plate group thickness b after conversion and the inner dimension a between the opposite wall surfaces of the cell chamber The ratio is in the range of 0.85 <b / a <1.0.
(Second Invention) The first invention is characterized in that it is in the range of 0.90 ≦ b / a ≦ 1.0.
本発明により、脱落した活物質が極板群上部に付着、堆積することによる短絡を防止し、サイクル特性に優れた鉛蓄電池を得られる。 According to the present invention, a lead storage battery having excellent cycle characteristics can be obtained by preventing a short circuit due to the fallen active material adhering to and depositing on the upper part of the electrode plate group.
以下、図面を参照して本発明の好ましい実施形態を詳細に説明する。
（格子体）
格子体は、図３に示す鉛−カルシウム-スズ系合金シートに切れ目をいれて拡開するエキスパンド格子体５を用いた。集電部６を除いた寸法は、正極用が幅１４５ｍｍ、高さ１１５ｍｍ、厚さ１．５ｍｍ、負極用が幅１４５ｍｍ、高さ１１５ｍｍ、厚さ１．３ｍｍである。
（正極板）
ボールミル法によって作製した酸化度７０％の鉛粉に、鉛丹化度９０％の鉛丹を希硫酸と混合・反応させたスラリと水および希硫酸を加えて混練し、活物質ペーストを作製する。この活物質ペーストを、前記正極用エキスパンド格子体に充填し、常法により熟成・乾燥して正極板とする。
（負極板）
ボールミル法によって作製した酸化度７０％の鉛粉に、添加剤として、炭素粉末、リグニン粉末、バリウム化合物粉末を加え混合する。続いて水および希硫酸を加えて混練し、活物質ペーストを作製する。この活物質ペーストを、前記負極用エキスパンド格子体に充填し、常法により熟成・乾燥して負極板とする。
（袋セパレータ）
図４に微多孔性のポリエチレン製シート７を示す。ポリエチレン製シート７の片面には、長手方向にセパレータのリブ８が設けられており、ポリエチレン製シート７のベース部の厚みは０．２ｍｍ、リブ８を含めた総厚みは０．８ｍｍである。ポリエチレン製シート７を長さ２３５ｍｍ、幅１５２ｍｍに切り出し二つ折りにする。続いて両側部をメカニカルシール、又は熱溶着し、図６のような袋セパレータ２に加工する。
（極板群）
図５に示すように、前記袋セパレータ３に負極板３を入れ、正極板７枚と袋セパレータに包まれた負極板８枚を交互に積層する。正極、負極各々の集電部６をキャストオンストラップ法で溶接し、図６に示す溶接部、すなわちストラップ９を形成させ、極板群１０を得る。
（電槽）
図７にポリプロピレン製の電槽１１を示す。電槽１１は、隔壁１２によって６区画に分割され、セル室１３を設けられる。前記極板群１０は、別名単電池といい、これは２Ｖの電池能力しかない。自動車用の電装品は、直流電圧１２Ｖを昇圧または降圧して駆動するため、極板群１０を６個直列接続して、２Ｖ×６＝１２Ｖとしている。そのため、セル室１３は６個必要である。
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
(Lattice)
As the lattice body, an expanded lattice body 5 that was cut and expanded in the lead-calcium-tin alloy sheet shown in FIG. 3 was used. The dimensions excluding the current collector 6 are 145 mm wide, 115 mm high and 1.5 mm thick for the positive electrode, and 145 mm wide, 115 mm high and 1.3 mm thick for the negative electrode.
(Positive electrode plate)
An active material paste is prepared by adding slurry and water and dilute sulfuric acid prepared by mixing and reacting lead tan with a lead oxidation degree of 90% to dilute sulfuric acid to lead powder with an oxidation degree of 70% produced by the ball mill method. . This active material paste is filled in the above-mentioned positive electrode expanded lattice and aged and dried by a conventional method to obtain a positive electrode plate.
(Negative electrode plate)
Carbon powder, lignin powder, and barium compound powder are added and mixed as additives to lead powder having a degree of oxidation of 70% produced by the ball mill method. Subsequently, water and dilute sulfuric acid are added and kneaded to prepare an active material paste. The active material paste is filled into the negative electrode expanded lattice and aged and dried by a conventional method to form a negative electrode plate.
(Bag separator)
FIG. 4 shows a microporous polyethylene sheet 7. Separator ribs 8 are provided on one side of the polyethylene sheet 7 in the longitudinal direction. The thickness of the base portion of the polyethylene sheet 7 is 0.2 mm, and the total thickness including the ribs 8 is 0.8 mm. The polyethylene sheet 7 is cut into a length of 235 mm and a width of 152 mm and folded in half. Subsequently, both sides are mechanically sealed or heat-welded and processed into a bag separator 2 as shown in FIG.
(Plate group)
As shown in FIG. 5, the negative electrode plate 3 is put in the bag separator 3, and seven positive electrode plates and eight negative electrode plates wrapped in the bag separator are alternately laminated. The current collector 6 of each of the positive electrode and the negative electrode is welded by a cast-on strap method to form a welded portion, that is, a strap 9 shown in FIG.
(Battery case)
FIG. 7 shows a battery case 11 made of polypropylene. The battery case 11 is divided into six sections by a partition wall 12 and a cell chamber 13 is provided. The electrode plate group 10 is also called a single cell, which has only a battery capacity of 2V. In order to drive an electric component for automobiles by stepping up or down a DC voltage of 12V, six electrode plate groups 10 are connected in series to be 2V × 6 = 12V. Therefore, six cell chambers 13 are required.
電槽１１の隔壁１２の両面及び電槽１１の両端面の内壁面に、リブ１が電槽１１の高さ方向に複数本設けられている。リブ１は、極板群を適切に加圧する役割がある。本発明では、壁面にリブ１を設けない電槽を用いる。
（電槽のセル室の内寸ａ）
電槽のセル室１３の内寸とは、リブ１のある電槽は、相対するリブの頂部と頂部の間の幅を指し、リブ１のない電槽は、相対する隔壁１２と隔壁１２の壁面間の幅を指す。
（電池の作製）
前記極板群１０を電槽１１のセル室１３に挿入し、隣の極板群１０のストラップ９を隔壁貫通溶接で溶接する。前記電槽１１に図示しないポリプロピレン製の蓋を熱溶着する。続いて蓋にセル室１３ごとに開けた注液口から電解液である希硫酸を注液し、周囲温度４０℃、電流２５Ａで２０時間通電して電槽化成する。電槽化成後、電解液液面を調整し、ＪＩＳＤ５３０１規定の８５Ｄ２３形電池を作製した。
（極板群の厚みｂ）
電槽化成後の電池を解体し、極板群１０を取り出す。極板群１０は電解液を吸収しているため、電槽化成前より膨潤している。極板群１０の厚みｂとは、電槽化成後において、積層方向の一番外側の袋セパレータのリブ８の頂部と、その反対側の袋セパレータのリブ８の頂部間の距離を指す。
（評価試験）
前記電池に、ＪＩＳＤ５３０１規定の軽負荷寿命試験を実施する。これは、周囲温度７５℃で、（ア）電流２５Ａで４分間定電流放電、（イ）定電圧１４．８Ｖ、制限電流２５Ａで１０分間定電圧充電し、（ア）と（イ）を１サイクルとして充放電を繰り返す試験である。
A plurality of ribs 1 are provided in the height direction of the battery case 11 on both surfaces of the partition wall 12 of the battery case 11 and inner wall surfaces of both end surfaces of the battery case 11. The rib 1 has a role of appropriately pressing the electrode plate group. In this invention, the battery case which does not provide the rib 1 on a wall surface is used.
(Inner dimension a of cell chamber of battery case)
The inside dimension of the cell chamber 13 of the battery case refers to the width between the tops of the ribs for the battery case with the ribs 1, and the battery case without the ribs 1 Refers to the width between walls.
(Production of battery)
The electrode plate group 10 is inserted into the cell chamber 13 of the battery case 11, and the strap 9 of the adjacent electrode plate group 10 is welded by partition wall welding. A polypropylene lid (not shown) is heat-welded to the battery case 11. Subsequently, dilute sulfuric acid, which is an electrolytic solution, is injected from the injection port opened for each cell chamber 13 in the lid, and energized for 20 hours at an ambient temperature of 40 ° C. and a current of 25 A to form a battery case. After the formation of the battery case, the electrolyte solution level was adjusted to produce an 85D23 type battery defined in JIS D5301.
(Thickness b of electrode plate group)
The battery after battery case formation is disassembled, and the electrode plate group 10 is taken out. Since the electrode group 10 absorbs the electrolytic solution, it is swollen before the battery case is formed. The thickness b of the electrode plate group 10 refers to the distance between the top of the rib 8 of the outermost bag separator in the stacking direction and the top of the rib 8 of the bag separator on the opposite side after the formation of the battery case.
(Evaluation test)
The battery is subjected to a light load life test specified in JIS D5301. At ambient temperature 75 ° C., (a) constant current discharge for 4 minutes with current 25A, (b) constant voltage charge for 10 minutes with constant voltage 14.8V, limit current 25A, and (a) and (b) 1 This test repeats charging and discharging as a cycle.
試験中、４８０サイクルごとに５６時間放置し、その後、定格コールドクランキング電流で３０秒間放電し、３０秒目の電流を記録する。電池の寿命判定は、前記３０秒目電流が７．２Ｖ以下となり、その４８０サイクル後の定格コールドクランキング電流放電で再び７．２Ｖを超えないことを確認したときとした。
During the test, leave it for 56 hours every 480 cycles, then discharge at rated cold cranking current for 30 seconds and record the current at 30 seconds. The battery life was determined when it was confirmed that the current at 30 seconds was 7.2 V or less and the rated cold cranking current discharge after 480 cycles did not exceed 7.2 V again.
以下、本発明の実施の形態を詳細に説明する。
（実施例１）
図１に、セル室１３の断面と収納された極板群１０を示す。セル室３の壁面にはリブを設けず、袋セパレータ２に包み込まれた負極板３、正極板４が交互に配置されている。なお、ストラップ９の図示は省略した。電槽化成後の極板群の厚みｂ／電槽のセル室の内寸ａは、０．８５となるように電池を作製した。
（実施例２）
実施例１において、ｂ／ａが、０．８８となるように電池を作製した。これは、エキスパンド格子体への正極板活物質ペーストの充填量を増やし、正極板４を厚くすることによって調整した。
（実施例３）
実施例１において、ｂ／ａが、０．９０となるように正極板４を厚くして電池を作製した。
（実施例４）
実施例１において、ｂ／ａが、１．０となるように正極板４を厚くして電池を作製した。
（比較例１）
実施例１において、ｂ／ａが、０．８２となるように電池を作製した。これは、エキスパンド格子体への正極板活物質ペーストの充填量を減らし、正極板４を薄くすることによって調整した。
（比較例２）
図２に、セル室１３の断面と収納された極板群１０を示す。セル室１３には高さ１２０ｍｍ、幅３ｍｍのリブ１を設け、極板群の厚みｂ／リブとリブの間の幅ａ´は、０．８２となるように電池を作製した。
（比較例３）
比較例２において、ｂ／ａ´が、０．８５となるように電池を作製した。これは、エキスパンド格子体への正極板活物質ペーストの充填量を増やし、正極板４を厚くすることによって調整した。
（比較例４）
比較例２において、ｂ／ａ´が、０．８８となるように正極板４を厚くして電池を作製した。
（比較例５）
比較例２において、ｂ／ａ´が、０．９０となるように正極板４を厚くして電池を作製した。
（比較例６）
比較例２において、ｂ／ａ´が、１．０となるように正極板４を厚くして電池を作製した。
Hereinafter, embodiments of the present invention will be described in detail.
Example 1
FIG. 1 shows a cross section of the cell chamber 13 and the electrode group 10 accommodated therein. The wall surface of the cell chamber 3 is not provided with ribs, and the negative electrode plates 3 and the positive electrode plates 4 that are wrapped in the bag separator 2 are alternately arranged. Illustration of the strap 9 is omitted. The battery was fabricated such that the thickness b of the electrode plate group after the battery case formation / the inner dimension a of the cell chamber of the battery case was 0.85.
(Example 2)
A battery was fabricated so that b / a was 0.88 in Example 1. This was adjusted by increasing the filling amount of the positive electrode plate active material paste into the expanded lattice and increasing the thickness of the positive electrode plate 4.
(Example 3)
In Example 1, a positive electrode plate 4 was thickened so that b / a was 0.90, and a battery was manufactured.
Example 4
In Example 1, the positive electrode plate 4 was thickened so that b / a was 1.0, and a battery was produced.
(Comparative Example 1)
A battery was fabricated so that b / a was 0.82 in Example 1. This was adjusted by reducing the filling amount of the positive electrode plate active material paste into the expanded lattice and making the positive electrode plate 4 thin.
(Comparative Example 2)
FIG. 2 shows a cross section of the cell chamber 13 and the electrode group 10 accommodated therein. A rib 1 having a height of 120 mm and a width of 3 mm was provided in the cell chamber 13, and the battery was fabricated such that the thickness b of the electrode plate group / the width a ′ between the ribs was 0.82.
(Comparative Example 3)
In Comparative Example 2, a battery was manufactured so that b / a ′ was 0.85. This was adjusted by increasing the filling amount of the positive electrode plate active material paste into the expanded lattice and increasing the thickness of the positive electrode plate 4.
(Comparative Example 4)
In Comparative Example 2, the positive electrode plate 4 was thickened so that b / a ′ was 0.88, and a battery was produced.
(Comparative Example 5)
In Comparative Example 2, the positive electrode plate 4 was thickened so that b / a ′ was 0.90, and a battery was produced.
(Comparative Example 6)
In Comparative Example 2, the positive electrode plate 4 was thickened so that b / a ′ was 1.0, and a battery was produced.
極板群１の厚みを変える手段は、上記の他に、負極活物質の充電量を増やして、負極板３を厚くする、正極板４と負極板３の双方を厚くする、エキスパンド格子体１を厚くする、ポリエチレン製シート７のベース厚みやリブ８の高さを変える、極板群１０に平板のスペーサを当接させるなどから選択できる。 In addition to the above, the means for changing the thickness of the electrode plate group 1 is to increase the charge amount of the negative electrode active material to increase the thickness of the negative electrode plate 3 and to increase the thickness of both the positive electrode plate 4 and the negative electrode plate 3. The thickness of the base plate of the polyethylene sheet 7 and the height of the ribs 8 can be changed, or a flat spacer can be brought into contact with the electrode plate group 10.
極板群の厚みｂ／電槽のセル室の内寸ａの比率が１．０以上であると、極板群１が電槽２に収納できない。 When the ratio of the thickness b of the electrode plate group / the inner dimension a of the cell chamber of the battery case is 1.0 or more, the electrode plate group 1 cannot be stored in the battery case 2.
前述の評価試験で各電池を評価した結果を表１に示す。 Table 1 shows the results of evaluation of each battery in the evaluation test described above.
本発明を用いた実施例１〜４は、寿命サイクル数に優れる。これらの理由は、サイクルと共に正極活物質の軟化が進行し、活物質が脱落するが、電槽のセル室にリブがないこと、かつ、極板群厚み／電槽のセル室の内寸の比率が０．８５〜１．０の範囲にあることから、脱落した活物質が極板群の上に舞い上がるスペースが無くなったことによる効果である。 Examples 1-4 using the present invention are excellent in the number of life cycles. The reason for this is that the positive electrode active material softens with the cycle and the active material falls off, but there is no rib in the cell chamber of the battery case, and the thickness of the electrode plate group / the inner dimensions of the cell chamber of the battery case Since the ratio is in the range of 0.85 to 1.0, this is an effect due to the absence of the space where the fallen active material floats on the electrode plate group.
特に、極板群厚み／電槽のセル室の内寸の比率が０．９０〜１．０の範囲にあると、より脱落した活物質が極板群の上に舞い上がるスペースが狭小化するため、寿命サイクル数が伸び好ましい。 In particular, when the ratio of the thickness of the electrode plate group / the inner dimension of the cell chamber of the battery case is in the range of 0.90 to 1.0, the space where the more active material that has fallen off rises above the electrode plate group is reduced The life cycle number is preferably increased.
比較例１には電槽リブはないが、寿命サイクル数が少ない。これは、極板群厚み／電槽のセル室の内寸の比率が０．８５未満であると、活物質量が少ないため、充放電の繰り返しに対する極板の耐久性が低下するためである。たとえ、正極板の活物質を増やしても、極板群の厚みが規制されているので、負極板の活物質が相対的に減ることになり、負極板の耐久性が低下し寿命性能が低下する。 In Comparative Example 1, there are no battery case ribs, but the number of life cycles is small. This is because, when the ratio of the thickness of the electrode plate group / the inner dimension of the cell chamber of the battery case is less than 0.85, the amount of the active material is small and the durability of the electrode plate against repeated charge / discharge is reduced. . Even if the active material of the positive electrode plate is increased, the thickness of the electrode plate group is regulated, so the active material of the negative electrode plate is relatively reduced, the durability of the negative electrode plate is lowered, and the life performance is lowered. To do.
また、活物質量を維持してエキスパンド格子体を薄くすると、寿命サイクル中の正極板の耐食性が著しく低下する。同様に、ポリエチレン製シートのベース厚みやリブの高さを小さくすると、電池が短絡しやすくなる。いずれの手段でも寿命性能が低下するため、極板群厚み／電槽のセル室の内寸の比率を０．８５以上としなければならない。 Further, if the expanded lattice is made thin while maintaining the amount of active material, the corrosion resistance of the positive electrode plate during the life cycle is significantly reduced. Similarly, when the base thickness of the polyethylene sheet and the height of the ribs are reduced, the battery is easily short-circuited. Since any means deteriorates the life performance, the ratio of the thickness of the electrode plate group / the inner dimension of the cell chamber of the battery case must be 0.85 or more.
１．リブ、２．袋セパレータ、３．負極板、４．正極板、５．エキスパンド格子体、６．集電部、７．ポリエチレン製シート、８．セパレータのリブ、９．ストラップ、１０．極板群、１１．電槽、１２．隔壁、１３．セル室 1. Ribs, 2. 2. bag separator, Negative electrode plate, 4. Positive electrode plate, 5. 5. Expanded grid, Current collector, 7. Polyethylene sheet, 8. 8. Separator ribs, Strap, 10. 10. Electrode plate group, Battery case, 12. Partition, 13. Cell room
Claims (1)
前記負極板が炭素粉末を含有し、
前記電槽のセル室には壁面にリブを設けず、かつ、化成後の極板群厚みｂ（スペーサを用いる場合、極板群厚みｂはスペーサの厚みを含む）と、前記セル室の相対する壁面間の内寸ａとの比率が、０．８５≦ｂ／ａ≦０．９０の範囲にあることを特徴とする鉛蓄電池。 Lead in which a positive electrode plate and negative electrode plates wrapped in a bag separator are alternately laminated, and the electrode plate group in which the current collectors of the positive electrode plates and the negative electrode plates are welded together is housed in a battery case having a plurality of cell chambers. In storage battery,
The negative electrode plate contains carbon powder;
The cell chamber of the battery case is not provided with ribs on the wall surface, and the electrode plate group thickness b after chemical conversion (when a spacer is used, the electrode plate group thickness b includes the thickness of the spacer) and relative to the cell chamber The ratio of the inner dimension a between the wall surfaces to be performed is in the range of 0.85 ≦ b / a ≦ 0.90.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013241540A JP6398111B2 (en) | 2013-11-22 | 2013-11-22 | Lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013241540A JP6398111B2 (en) | 2013-11-22 | 2013-11-22 | Lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2015103330A JP2015103330A (en) | 2015-06-04 |
| JP6398111B2 true JP6398111B2 (en) | 2018-10-03 |
Family
ID=53378889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013241540A Active JP6398111B2 (en) | 2013-11-22 | 2013-11-22 | Lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6398111B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018105066A1 (en) * | 2016-12-07 | 2018-06-14 | 日立化成株式会社 | Liquid type lead storage battery and production method therefor |
| CN109524731A (en) * | 2018-12-29 | 2019-03-26 | 珠海泰坦新动力电子有限公司 | Series connection formation device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134374U (en) * | 1983-02-28 | 1984-09-08 | 新神戸電機株式会社 | lead acid battery |
| JP3355858B2 (en) * | 1994-05-24 | 2002-12-09 | 松下電器産業株式会社 | Lead storage battery and method of manufacturing the same |
| JP3412300B2 (en) * | 1994-12-16 | 2003-06-03 | 松下電器産業株式会社 | Lead storage battery |
| JP4590814B2 (en) * | 2002-05-21 | 2010-12-01 | パナソニック株式会社 | Lead acid battery |
| JP4752365B2 (en) * | 2005-07-13 | 2011-08-17 | パナソニック株式会社 | Lead acid battery |
| JP2007328979A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Lead acid storage battery |
| JP5012047B2 (en) * | 2007-01-29 | 2012-08-29 | パナソニック株式会社 | Lead acid battery |
| JP5150012B1 (en) * | 2011-07-11 | 2013-02-20 | パナソニック株式会社 | Lead acid battery |
-
2013
- 2013-11-22 JP JP2013241540A patent/JP6398111B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015103330A (en) | 2015-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101123059B1 (en) | Hybrid-typed Stack and Folding Electrode Assembly and Secondary Battery Containing the Same | |
| JP6665465B2 (en) | Lead storage battery | |
| WO2014162674A1 (en) | Lead acid storage battery | |
| JP6045329B2 (en) | Lead acid battery | |
| JP7205483B2 (en) | lead acid battery | |
| WO2012153464A1 (en) | Lead-acid battery anode and lead-acid battery | |
| JP6398111B2 (en) | Lead acid battery | |
| JP6575536B2 (en) | Lead acid battery | |
| JP6318852B2 (en) | Lead acid battery | |
| JP5573785B2 (en) | Lead acid battery | |
| WO2014097516A1 (en) | Lead storage battery | |
| JP6197426B2 (en) | Lead acid battery | |
| JP6582386B2 (en) | Lead acid battery | |
| JP6572711B2 (en) | Lead acid battery | |
| JP6497460B2 (en) | Lead acid battery | |
| JP6791326B2 (en) | Lead-acid battery | |
| JP6665426B2 (en) | Lead storage battery | |
| JP2007273403A (en) | Control valve type lead-acid battery and its charging method | |
| JP2017069022A (en) | Lead storage battery | |
| JP2009289595A (en) | Sealed lead acid storage battery | |
| JP6811955B2 (en) | Battery | |
| JP2016171018A (en) | Lead storage battery | |
| JP5754607B2 (en) | Lead acid battery | |
| JP4742424B2 (en) | Control valve type lead acid battery | |
| JP5504383B1 (en) | Lead acid battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20150421 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20160206 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20161028 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20170908 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170914 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20171013 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20171013 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180130 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180308 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20180731 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20180808 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20180813 |
|
| R151 | Written notification of patent or utility model registration |
Ref document number: 6398111 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |