TWI354390B - Lead acid battery having lightly gelled electrolyt - Google Patents

Lead acid battery having lightly gelled electrolyt Download PDF

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Publication number
TWI354390B
TWI354390B TW096119116A TW96119116A TWI354390B TW I354390 B TWI354390 B TW I354390B TW 096119116 A TW096119116 A TW 096119116A TW 96119116 A TW96119116 A TW 96119116A TW I354390 B TWI354390 B TW I354390B
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Taiwan
Prior art keywords
acid battery
lead
electrolyte
gelled electrolyte
separator
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TW096119116A
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Chinese (zh)
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TW200847503A (en
Inventor
Yi Ming Lin
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Ocean Bay Internat Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Description

1354390 , 九、發明說明: 【發明所屬之技術領域】 本發明係有關於一種鉛酸電池,尤指一種具有輕度膠 化電解液之閥節式(valve regulated)船酸電池。 【先前技術】 鉛酸電池自1800年後期發明後,即成為第一個商業上 φ 具實用性質的電池。自1950年起,可充電式鉛酸電池更成 為最廣泛使用之電池。鉛酸電池的放電化學反應方程式如 下:1354390, IX. Description of the Invention: [Technical Field] The present invention relates to a lead-acid battery, and more particularly to a valve regulated marine acid battery having a lightly gelled electrolyte. [Prior Art] Since the lead-acid battery was invented in the late 1800s, it became the first commercial φ battery with practical properties. Since 1950, rechargeable lead-acid batteries have become the most widely used batteries. The discharge chemical reaction equation for lead-acid batteries is as follows:

Pb02 + Pb + 2H2S04 -> 2PbS04 + 2H2〇 錯酸電池之所以被如此廣泛接受及使用,乃因其可於寬廣 的溫度範圍内提供高或低的電流、具有良好存放期(shelf life)與循環哥命(Hfe CyCie)、以及低生產成本等優點。另 外’船酸電池更具備可製作成各種大小及形狀之優點,如 $家用電池至大型潛艦電池皆可使用鉛酸電池。 閥卽式錯酸電池(Valve Regulated Lead Acid Battery, VRLA)係為錯酸電池之一種。其包含有複數個正極板、複 數個負極板、複數個隔板、一電解液、以及一配有一單向 閘門之容器。該單向閘門係用以防止外界氧氣進入而與極 板反應使電池進行内放電;電池内氣壓過高時,閘門亦用 以容許氣體自電池内排出。請參閱第1圖,第1圖係為— 1354390 ,習知之鉛酸電池之示意圖。如第1圖所示,鉛酸電池10包 a有複數個父錯配置之正極板12與負極板14、複數個設 置於正極板12與負極板14中間之隔板16。正極板12與 .負極板14係分別將氧化鉛與鉛膏塗佈於鉛架上,經過化成 • (formati〇n Process)後分別形成正極板12與負極板14。 一般說來,閥節式鉛酸電池之電解液係為定位電解 鲁液。'電解液冬$,可促使充電時產生之氧氣由正極板移轉 至負極板,再進行還原反應,回到電解液中;另外,電解 液定位亦可降低電解液意外外流之危險性。而習知之電解 液定位方法係分為吸附法與膠化法。如美國專利第 4,871,428號揭示之電解液定位方法,係利用類似製紙方法 製造出之微細玻璃纖維隔板來吸附電解液使其定位,並與 電極板緊密接.合,以確保電解液與電極緊密相觸,而可提 供高電能。然而’隔板與電極板之緊密相觸易於負極板内 ❿形成電刺(dendrite) ’而電刺若逐漸伸展穿透至正極板最終 將造成電池短路。 美國專利第(/4,317,87》號係揭示另一種電解液定位方 法,其利用硫酸與矽鹽粒子膠化電解液使其定位。然而, 此膠化電解液具有許多電性缺點,例如高内電阻、低電容 量、以及短於一般鉛酸電池之循環壽命。另外,由於膠化 電解液會收縮(shrink) ’因此易造成膠化電解液與極板接觸 1354390 不良之問題。最後,一般膠化電池因黏稠度甚_高,不易充 • _________ ~ -〆 入電池容器,亦不易滲入極板内的毛細孔使其飽和,因此 膠化電解液更具有製作上之困難。 美國專利第4,889,778號另揭示一種具有觸變性 (thixotropic)膠化電解液之鉛酸電池。其膠化電解液係將含 重量百分比30%之液態驗金屬石夕氧化物分散凝膠(aqueous colloidal dispersion of alkali metal polysilica)與硫酸以一比 三至一比六之體積比配置而成。該液態驗金屬石夕氧化物分 散凝膠之分子式係為[Y20].x[Si02].nH20,其中X係20至 350、Y係驗金屬、而η則為莫耳水含量。另外,美國專利 公開號第2005/0042512號另揭示一鉛酸電池,其所具有之 電解液係藉由含比重1.250至1.280之硫酸與石夕鹽粒子配製 而成’其中矽鹽粒子之含量約佔電解液重量百分比之2至 15%。且至少有佔重量百分比ι〇〇/0之矽鹽粒子係使用未曾 乾燥過之沉澱石夕鹽(never-dried precipitated silica)。 如上所述’雖然習知技術係已揭示多種改良之膠化電 解液,以避免膠化電解液充入電池容器之困難。然而,習 知具有膠化電解液之鉛酸電池仍具有較差電功能之問題, 例如放電時因電解質減少而逐漸產生之高内電阻與低電容 量,以及因使用矽鹽造成之電解液收縮等問題。 1354390 【發明内容】Pb02 + Pb + 2H2S04 -> 2PbS04 + 2H2 erbium acid battery is so widely accepted and used because it can provide high or low current over a wide temperature range, with good shelf life and Hfe CyCie, and low production costs. In addition, the ship acid battery has the advantages of being able to be made into various sizes and shapes, such as a household battery to a large submarine battery. Valve Regulated Lead Acid Battery (VRLA) is one of the wrong acid batteries. It comprises a plurality of positive plates, a plurality of negative plates, a plurality of separators, an electrolyte, and a vessel equipped with a one-way gate. The one-way gate is used to prevent external oxygen from entering and reacting with the plate to cause internal discharge of the battery; when the air pressure in the battery is too high, the gate is also used to allow gas to be discharged from the battery. Please refer to Fig. 1. Fig. 1 is a schematic diagram of a conventional lead-acid battery. As shown in Fig. 1, the lead-acid battery 10 includes a plurality of positive and negative electrode plates 12 and a negative electrode plate 14, and a plurality of separators 16 disposed between the positive electrode plate 12 and the negative electrode plate 14. The positive electrode plate 12 and the negative electrode plate 14 are respectively coated with lead oxide and a lead paste on a lead frame, and are formed into a positive electrode plate 12 and a negative electrode plate 14 by a formation process. In general, the electrolyte of a valve-type lead-acid battery is a positioning electrolyte. 'Solution winter $, can promote the oxygen generated during charging from the positive plate to the negative plate, and then carry out the reduction reaction, return to the electrolyte; in addition, the positioning of the electrolyte can also reduce the risk of accidental outflow of the electrolyte. The conventional electrolytic liquid positioning method is divided into an adsorption method and a gelation method. The electrolyte positioning method disclosed in U.S. Patent No. 4,871,428 discloses the use of a fine glass fiber separator manufactured by a similar papermaking method to adsorb the electrolyte to be positioned and closely bonded to the electrode plate to ensure that the electrolyte and the electrode are tight. Touch to provide high power. However, the close contact between the separator and the electrode plate facilitates the formation of a dendrite in the negative electrode plate, and the fact that the electric thorn penetrates to the positive electrode plate eventually causes a short circuit of the battery. U.S. Patent No. (/4,317,87) discloses another method of locating an electrolyte which utilizes sulfuric acid and cerium salt particles to gel the electrolyte to localize it. However, this gelled electrolyte has many electrical disadvantages, such as high internality. Resistance, low capacitance, and shorter cycle life than general lead-acid batteries. In addition, because the gelled electrolyte will shrink, it is easy to cause problems with the contact of the gelled electrolyte with the plate 1354390. Finally, the general glue Because the viscosity of the battery is very high, it is not easy to charge. _________ ~ - It is not easy to penetrate into the battery container, and it is not easy to penetrate into the capillary pores in the plate to make it saturated. Therefore, the gelled electrolyte is more difficult to manufacture. US Patent No. 4,889,778 Further disclosed is a lead acid battery having a thixotropic gelled electrolyte, wherein the gelled electrolyte is 30% by weight of an aqueous colloidal dispersion of alkali metal polysilica. It is configured with a volume ratio of sulfuric acid of one to three to one to six. The molecular formula of the liquid metal oxide dispersion gel is [Y20].x[Si02].nH20, Wherein X is 20 to 350, Y is metal, and η is a molar water content. In addition, U.S. Patent Publication No. 2005/0042512 discloses a lead-acid battery having an electrolyte content by specific gravity. 1.250 to 1.280 sulfuric acid and Shishi salt particles are prepared as 'the content of the cerium salt particles is about 2 to 15% by weight of the electrolyte. At least the weight percentage of 〇〇 〇〇 / 0 矽 salt particles are not used. Dry-preed precipitated silica. As described above, although the prior art has disclosed various modified gelled electrolytes, it is difficult to prevent the gelled electrolyte from filling the battery container. It is known that a lead-acid battery having a gelled electrolyte still has a problem of poor electrical function, such as high internal resistance and low capacitance which are gradually generated due to a decrease in electrolyte during discharge, and shrinkage of the electrolyte due to the use of barium salt. [Summary of the Invention]

V 因此本發明之一主要目的係提供一具有輕度膠化電解 液之鉛酸電池,以解決習知技術無法克服之難題。 為達上述目的,本發明之申請專利範圍揭示一種輕度 膠化電解液,該輕度膠化電解液包含有稀硫酸(dilute sulfuric acid)與矽鹽粒子,該矽鹽粒子約佔該膠化電解液重 量百分比之0.1%至3%,且該矽鹽粒子係為煙矽鹽(j;um@ silica)。 ---— 根據本發明之申請專利範圍,更提供一種具有輕度膠 化電解液之鉛酸電池,其包含有複數個交錯配置之正極板 與複數個負極板、複數個配置於該等正極板與該等負極板 間之隔板、與一輕度膠化電解液。該輕度膠化電解液係包 含有稀硫酸與矽鹽粒子,該矽鹽粒子約佔膠化電解液重量 • 百分比之0.1%至3%,且該矽鹽粒子係為煙矽鹽(fumed silica)。 本發明所提供之具輕度膠化電解液之鉛酸電池係具有 ' 高度改良之電性功能,例如低内電阻、高充電率、高電密 度、以及無電解液收縮問題等優點。另外,本發明所提供 之具輕度膠化電解液之鉛酸電池因具有高電容量與可高速 充放電之優點,故特別適用於低成本高效能之用途,如供 1354390 高爾夫球車、電動腳踏車,以及戶外光電照明等之用。 【實施方式】 . 本發明之發明内容係摘要如上,以下為本發明之實施 方式與實施例。 . 本發明係根據一新發現之電解液定位方法,以達到將 ⑩ 船酸電池電解液定位之目的’且本發明尤其適用於閥節式 鉛酸電池。於本發明之實施例中,係提供一輕度膠化電解 液,其藉由比重為1.28至1.34之硫酸與少量石夕鹽粒子混合 而成。該石夕鹽粒子係為煙石夕鹽,且其含量约佔該輕度膠化 電解液重量百分比之0.1 %至3%,更適切之含量係為電解 液重量百分比之0.5%至1%。 剛完成配製之輕度膠化電解液具有低黏稠度,於很長 • 一段時間内可保持其自由流動之特性。在經過二至三次之 充放電循環後,該輕度膠化電解液内會逐漸產生膠化度較 高之局部塊狀糊相(localized pasty lumpy gel),散佈於電解 液内,且特別是產生在玻璃纖維隔板與極板相接觸之表層 • 内。而該等相混之高度/輕度膠化二相電解液於高速充電後 仍可回復至大致為輕度膠化之液相。然而,該輕度膠化電 解液在多次充放電後最終會形成高度膠化之糊相。 1354390 另外’不同之矽鹽粒子及用量將影響配製完成之輕度 膠化電解液為透明或稍微模糊(haZy)。例如,本實施例所使 用之矽鹽粒子係為煙矽鹽,而以煙矽鹽製而成之輕度膠化 電解液係為一稍微模糊之輕度膠化電解液,且隨著時間增 長而益呈糊相。本發明中所使用之煙矽鹽係可為德固薩公 司(Degussa)所生產之產品:AEROSIL®200、200V、未分散 之AERODISP® W 7520(可於氨中保持安定)、或w 7520 N(可於氫氧化鈉中保持安定)。 配製本發明提供之輕度膠化電解液並沒有特別要求混 合设備,習知之混合今台如推動攪拌機(pr〇peUerstirrer)、 柯勒斯向速分散機(Cowless dissolver)等皆可使用;抗酸 (acid resistant)容器如聚四氟乙烯鍍膜(Tefl〇n c〇ated)缸,亦 使用於本實施例中,然不限於此。混合速度需調整至可得 到均勻混合之溶液,並可防止結塊或沉殿之速度為止。例 如以推動If拌機進行混合時’授拌速度約為⑵Μ麵週, 刀(rpm) ’同日^於約2G分鐘内緩緩地將㈣納加入稀硫酸 中待石夕酸鈉元全加入後再行授拌分鐘即可完成本發明 提供之輕度膠化電解液之製作。另外,坡^ u 电螂农之取忭另外,攪拌期間,該混合 液之溫度需維持於4〇。0以下。 本發明所提供之輕度膠化電解液之定㈣藉由玻璃纖 維隔板之吸附力與電解液之輕度膠化來達成。—般而言, 1354390 i輕度膠化電解液不需額外輔助即可有致地滲人玻璃纖維隔 板,然而施以真空處理係更可協助本輕度膠化電解液更有 效率地滲入隔板與極板。值得注意的是,由於在充電後, •本發明所提供之輕度膠化電解液仍維持其低黏度,且其含 '有之親水性(hydrophilic)的石夕鹽粒子可防止纖維玻璃隔板 之毛細孔乾燥化,故本發明所提供之具有輕度膠化電解液 之鉛酸電池具有低電阻,而更可有效地充電並達到高電能 # 饴度、具有較長之放電其極高充放電功能;且本具有輕度 膠化電解液之鉛酸電池於放電時,尤其糊塊膠狀體係形成 於接近極板表面之纖維玻璃隔板的毛細孔内,其於充放電 時反覆形成之特性係可防止或減緩鉛酸電池衰退之問題, 例如防止極板表面有效膏質脫落以及防止電刺之成長等 等。因此,本發明所提供之具有輕度膠化電解液之鉛酸電 池具有良好的循環充電壽命。 鲁 另外,雖然極板係可於組裝好的鉛酸電池内化成,然 而,使用已化成之極板組裝鉛酸電池仍是一較佳之選擇。 本實施例中,雖使用玻璃纖維作為隔板材料,然而抗酸的 高分子不織布亦可用以作為隔板之材質,例如經親水性處 理之聚烯烴(polyolefin)或聚酯(p〇iyester)不織布亦為合適 之隔板材料。 本發明係於此提供一較佳之實施例一。根據本發明所 11 1354390 提供之較佳實施例―,首先冑1⑻公克之煙㈣,如 ㈣麵之產品AER0SIL⑧細與_公克之去離子水混合 均勾时另外將9公斤比4為1,32之稀硫酸置於具有推動式 授拌器之抗酸容器内’且推動式授拌器之轉速係保持為 145 7 r p m。接下來,將煙石夕鹽溶液於2 〇分鐘内緩緩加入容 置^稀硫酸之推動錢拌㈣,完全加人後仍持續麟1〇 刀鉍以取得—均勻之混合液,即本發明所提供之輕度膠 化電解液。本實施例所提供之輕度膠化電解液之黏度 (v1SC0Slty)略高於混合前之稀硫酸;本實施例所提供之輕度 膠化電解液亦較為模糊(hazy)。雖其模糊度會隨時間而增 加,但該輕度膠化電解液於三週内仍可維持其低黏度並保 持自由流動》 本發明係於此更提供一較佳實施例二,與實施例一相 同’首先將100公克之煙矽鹽,如Degussa之產品AER0SIL® 與900公克之去離子水混合均勻,再與9公斤比重為133 之稀硫酸置於具有推動式攪拌器之抗酸容器内,且該推動 式搜拌器之轉速係保持為1360 rpm。實施例二所得之輕度 膠化電解液之黏度與模糊度係同於實施例一,固於此不再 贅述。 另外’本實施例亦提供一作為對照組之鉛酸電池,對 照組之錯酸電池係利用比重為132之一般硫酸配製所需之 12 1354390 電解液,且為一 12伏特12安培小時之鉛酸電池,用以與 本發明所提供之具輕度膠化電解液之鉛酸電池比較。對照 組鉛酸電池之電解液所具有之電阻係列於表一。 根據本發明實施例一與實施例二所提供之輕度膠化電 解液,本發明係於此更提供一分別具有實施例一與實施例 二所提供之輕度膠化電解液之12伏特12安培小時之鉛酸 電池。並列舉該等輕度膠化電解液之電阻值於表一;而該 等具輕度膠化電解液之鉛酸電池於各種放電率下所得之放 電時間與放電測試之結果係列於表二。 表一 實施例 —** 實施例 對照組一 電阻(Ω) 3.10 3.00 2.80 註:電阻係由兩根相距50公厘(mm)的銅線測得。 表二 實施例一 實施例二 對照組一 2 小時率 @0.42C 02:17:31 02:28:37 02:27:54 5 小時率 @0.17C 06:42:16 07:13:57 13 1354390 10 小時率 @0.1C 11:30:55 12:17:20 20 小時率 @0.05C 23:09:16 26:43:46 22:10:33 33分鐘率@1C 50:27 57:09 53:27 7.2 分鐘率 @3C 12:35 13:39 13:36 註:放電時間單位為:時:分:秒 如表一所示,雖然本實施例所提供之輕度膠化電解液 具有較一般電解液稍高之電阻值,且對2小時放電率小幅 .增加,然實施例一與實施例二顯示其20小時放電率與習知 船酸電池相較卻具有極佳之改良效果。根據表一所示,本 發明所提供之具有輕度膠化電解液之鉛酸電池係特別適用 於需長期放電之電器,如電動腳踏車以及戶外光電照明。 另外,如表二所示,本發明所提供之具有輕度膠化電 解液之鉛酸電池具有極佳之1C與3C之高率放電功能。同 ' 時請參閱第2圖,第2圖係為本發明提供之具有輕度膠化 • 電解液之鉛酸電池與習知鉛酸電池於300次放電循環下之 放電時間比較曲線圖。如第2圖所示,本發明所提供之具 輕度膠化電解液之鉛酸電池於300次放電循環壽命測試下 - 具有較佳之放電時效,由此可知本發明所提供之具有輕度 14 1354390 膠化電解液之鉛酸電池係能提供較一般鉛酸電池更高之電 容量及較長之放電時效。 以上所述僅為本發明之較佳實施例,凡依本發明申請 專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範 圍。 【圖式簡單說明】 第1圖係為一習知之鉛酸電池之示意圖。 第2圖係為本發明提供之具有輕度膠化電解液之鉛酸電池 與習知鉛酸電池於300次放電循環下之放電時間比較曲線 圖。 【主要元件符號說明】 10 鉛酸電池 12 正極板 14 負極板 16 隔板 15V Therefore, a primary object of the present invention is to provide a lead acid battery having a lightly gelled electrolytic solution to solve the problem that the prior art cannot overcome. In order to achieve the above object, the patent application scope of the present invention discloses a lightly gelled electrolyte containing dilute sulfuric acid and barium salt particles, which account for about the gelation. The electrolyte is 0.1% to 3% by weight of the electrolyte, and the cerium salt particles are soot salts (j; um@silica). According to the patent application scope of the present invention, a lead-acid battery having a lightly gelled electrolyte is provided, which comprises a plurality of positive plates and a plurality of negative plates arranged in a staggered configuration, and a plurality of positive plates disposed on the positive electrodes. a separator between the plate and the negative plates, and a lightly gelled electrolyte. The lightly gelled electrolyte system comprises dilute sulfuric acid and barium salt particles, the barium salt particles occupying 0.1% to 3% of the weight percent of the gelled electrolyte, and the barium salt particles are fumed silica ). The lead acid battery with a lightly gelled electrolyte provided by the present invention has a highly improved electrical function such as low internal resistance, high charge rate, high electrical density, and no electrolyte shrinkage. In addition, the lead-acid battery with mild gelled electrolyte provided by the invention has the advantages of high electric capacity and high-speed charge and discharge, so it is particularly suitable for low-cost and high-performance applications, such as 1354390 golf carts, electric Bicycles, as well as outdoor photoelectric lighting. [Embodiment] The summary of the invention is as described above, and the following are embodiments and examples of the invention. The present invention is based on a newly discovered electrolyte positioning method for the purpose of positioning a 10-ship acid battery electrolyte and the invention is particularly applicable to valve-section lead-acid batteries. In an embodiment of the present invention, a lightly gelled electrolytic solution is provided which is obtained by mixing sulfuric acid having a specific gravity of 1.28 to 1.34 with a small amount of agglomerated salt particles. The Shishi salt particles are a shisha salt, and the content thereof is about 0.1% to 3% by weight of the light gelled electrolyte, and the more suitable content is 0.5% to 1% by weight of the electrolytic solution. The lightly gelled electrolyte that has just been formulated has a low viscosity and maintains its free-flowing properties over a long period of time. After two to three times of charge and discharge cycles, a localized pasty lumpy gel with a higher degree of gelatinization is gradually formed in the lightly gelled electrolyte, which is dispersed in the electrolyte, and is particularly produced. Inside the surface layer where the glass fiber separator is in contact with the plate. The high-temperature/lightly gelled two-phase electrolytes can be returned to a substantially lightly gelled liquid phase after high-speed charging. However, the lightly gelled electrolyte eventually forms a highly gelatinized paste phase after multiple charge and discharge cycles. 1354390 In addition, 'different strontium salt particles and amounts will affect the formulation of the lightly gelled electrolyte to be transparent or slightly blurred (haZy). For example, the cerium salt particles used in the present embodiment are soot salts, and the lightly gelled electrolyte made of soot salts is a slightly ambiguous mild gelling electrolyte, and grows with time. The benefits are mixed. The soot salt used in the present invention may be a product produced by Degussa: AEROSIL® 200, 200V, undispersed AERODISP® W 7520 (which can be stabilized in ammonia), or w 7520 N (It can be kept stable in sodium hydroxide). The preparation of the mild gelled electrolyte provided by the present invention does not particularly require a mixing device, and the conventional mixing can be used, such as a pusher (pr〇peUerstirrer) or a Cowless dissolver (Cowless dissolver); An acid resistant container such as a Teflon-coated cylinder is also used in the present embodiment, but is not limited thereto. The mixing speed should be adjusted to obtain a homogeneously mixed solution and prevent the speed of agglomeration or sinking. For example, when pushing the If machine to mix, the 'mixing speed is about (2) Μ face, knife (rpm) 'on the same day ^ in about 2G minutes, slowly add (four) to the dilute sulfuric acid to be added to the sodium sulphate The preparation of the lightly gelled electrolyte provided by the present invention can be completed in another minute. In addition, the temperature of the mixture should be maintained at 4 Torr during the stirring. 0 or less. The setting of the lightly gelled electrolyte provided by the present invention (4) is achieved by the adsorption of the glass fiber separator and the mild gelation of the electrolyte. In general, the 1354390 i light gelled electrolyte can infiltrate the glass fiber separator without additional assistance. However, the vacuum treatment system can help the light gel electrolyte to penetrate the partition more efficiently. Plate and plate. It is worth noting that, after charging, the mild gelled electrolyte provided by the present invention maintains its low viscosity, and its hydrophilic hydrophilic particles prevent the fiberglass separator. The capillary pores are dried, so the lead-acid battery with the mild gelled electrolyte provided by the invention has low resistance, and can be effectively charged and achieves high electric energy, has a long discharge and has a very high charge. The discharge function; and the lead acid battery with the mild gelled electrolyte is formed in the capillary pores of the fiberglass separator near the surface of the electrode plate during discharge, and is formed repeatedly during charging and discharging. The characteristics prevent or slow down the deterioration of the lead-acid battery, such as preventing the effective cream off of the surface of the plate and preventing the growth of the electric thorn. Therefore, the lead acid battery having a lightly gelled electrolyte provided by the present invention has a good cycle charge life. In addition, although the plate system can be formed in an assembled lead-acid battery, it is still a better choice to assemble a lead-acid battery using the formed plate. In this embodiment, although glass fiber is used as the separator material, the acid-resistant polymer nonwoven fabric can also be used as the material of the separator, for example, hydrophilically treated polyolefin or polyester nonwoven fabric. Also suitable as a separator material. The present invention provides a preferred embodiment 1 herein. According to a preferred embodiment of the present invention, 1 354 390, firstly, 1 (8) grams of smoke (four), such as (four) surface product AER0SIL8 fine and _ gram of deionized water are mixed when the other 9 kg ratio 4 is 1,32 The dilute sulfuric acid was placed in an acid resistant container with a pusher and the speed of the pusher was maintained at 145 7 rpm. Next, the soot salt solution is slowly added to the dilute sulfuric acid to promote the money mix (4) within 2 minutes, and after the addition, the lining is continued to obtain a uniform mixture, that is, the present invention. A mild gelled electrolyte is provided. The viscosity (v1SC0Slty) of the lightly gelled electrolyte provided in this embodiment is slightly higher than that of the diluted sulfuric acid before mixing; the mild gelled electrolyte provided in this embodiment is also hazy. Although the ambiguity increases with time, the mild gelled electrolyte can maintain its low viscosity and maintain free flow within three weeks. The present invention further provides a preferred embodiment 2, and the embodiment One the same 'Firstly, 100 grams of soot salt, such as Degussa's product AER0SIL®, is mixed with 900 grams of deionized water, and then 9 kilograms of dilute sulfuric acid with a specific gravity of 133 is placed in an acid-resistant container with a pusher. And the speed of the pusher is maintained at 1360 rpm. The viscosity and ambiguity of the mild gelled electrolyte obtained in the second embodiment are the same as those in the first embodiment, and will not be described herein. In addition, this embodiment also provides a lead-acid battery as a control group, and the wrong acid battery of the control group is prepared by using a general sulfuric acid having a specific gravity of 132 to prepare a 12 1354390 electrolyte, and is a 12-volt 12-ampere-hour lead acid. A battery for comparison with a lead acid battery having a mild gelled electrolyte provided by the present invention. The resistance series of the electrolyte of the lead-acid battery of the control group are shown in Table 1. According to the light gelled electrolyte provided by the first embodiment and the second embodiment of the present invention, the present invention further provides a 12 volt 12 of the lightly gelled electrolyte provided in the first embodiment and the second embodiment. Ampere hour lead acid battery. The resistance values of the mild gelled electrolytes are listed in Table 1; and the results of the discharge time and discharge tests obtained by the lead acid batteries with mild gelling electrolytes at various discharge rates are shown in Table 2. Table 1 Example - ** Example Control group 1 Resistance (Ω) 3.10 3.00 2.80 Note: The resistance was measured by two copper wires separated by 50 mm (mm). Table 2 Example 1 Example 2 Control group 2 hour rate @0.42C 02:17:31 02:28:37 02:27:54 5 hour rate@0.17C 06:42:16 07:13:57 13 1354390 10 hour rate @0.1C 11:30:55 12:17:20 20 hour rate @0.05C 23:09:16 26:43:46 22:10:33 33 minutes rate @1C 50:27 57:09 53: 27 7.2 minute rate @3C 12:35 13:39 13:36 Note: The discharge time unit is: hour: minute: second as shown in Table 1, although the mild gelled electrolyte provided in this embodiment has more general electrolysis The liquid has a slightly higher resistance value, and the discharge rate is slightly increased for 2 hours. However, the first embodiment and the second embodiment show that the 20-hour discharge rate has an excellent improvement effect compared with the conventional ship acid battery. According to Table 1, the lead acid battery with a lightly gelled electrolyte provided by the present invention is particularly suitable for electrical appliances requiring long-term discharge, such as electric bicycles and outdoor photoelectric lighting. Further, as shown in Table 2, the lead acid battery having the mild gelled electrolyte provided by the present invention has an excellent high rate discharge function of 1C and 3C. Referring to Figure 2, Figure 2 is a graph comparing the discharge time of a lead-acid battery with a mild gelation • electrolyte and a conventional lead-acid battery under 300 discharge cycles. As shown in Fig. 2, the lead-acid battery with a lightly gelled electrolyte provided by the present invention has a better discharge aging under 300 discharge cycle life tests, and thus it is known that the present invention provides a light 14 1354390 The lead acid battery of gelled electrolyte can provide higher capacity and longer discharge aging than general lead acid batteries. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the invention are intended to be included in the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a conventional lead-acid battery. Fig. 2 is a graph showing the comparison of discharge time of a lead-acid battery having a lightly gelled electrolyte and a conventional lead-acid battery under 300 discharge cycles. [Main component symbol description] 10 Lead-acid battery 12 Positive plate 14 Negative plate 16 Separator 15

Claims (1)

丄354390 100年5月13日修正替拖百 十、申請專利範固: L 一種錯酸電池之輕度膠化電解液’其包含有: 一稀硫酸;以及 低塁石夕鹽粒子’且該矽鹽粒子約佔該輕度膠化電解液總 重量之0.1%至3% ; 其中该石夕鹽粒子係為煙石夕鹽(fumed silica)。 2. 如申請專利範圍第1項所述之輕度膠化電解液,其中該 稀硫酸之比重係為1.28至1 34。 3. 如申請專利範圍第1項所述之輕度膠化電解液,其中該 低量碎鹽粒子係佔該輕度膠化電解液總重量之〇 5%至1〇/〇。 4. ——種具有輕度膠化電解液之鉛酸電池,其包含有: (a) —電池容器; (b) 複數個正極板與複數個負極板交錯設置於該電池容 器内; (c) 複數個隔板,設置於該等正極板與該等負極板之間; (d) —輕度膠化電解液,用以提供該等正極板與該等負極 板間之電性連接,該輕度膠化電解液包含有: 一稀硫酸;以及 低量矽鹽粒子’且該矽鹽粒子約佔該輕度膠化電解浪 總重量之0.1%至3% ; 1354390 100年5月13日修正替換頁 其中該石夕鹽粒子係為煙石夕鹽(fumed silica)。 I- 5.如申請專利範圍第4項所述之鉛酸電池,其中該稀硫酸 之比重係為1.28至1.34。 6. 如申請專利範圍第4項所述之鉛酸電池,其中該低量矽 鹽粒子係佔該輕度膠化電解液總重量之0.5%至1%。 7. 如申請專利範圍第4項所述之鉛酸電池,其中該鉛酸電 池係為一閥節式錯酸電池(Valve Regulated Lead Acid Battery,VRLA)。 i! 8. 如申請專利範圍第4項所述之鉛酸電池,其中該等隔板 係為可吸收電解液(electr〇lyte-absorptive)隔板。 9. 如申請專利範圍第8項所述之鉛酸電池,其中該等隔板 係為玻璃纖維隔板。 1〇.如申請專利範圍第8項所述之鉛酸電池,其中該等隔 板係為高分子不織布隔板。 U·如申請專利範圍第8項所述之鉛酸電池,其中該等隔 才反係為聚烯故(p〇ly〇lefin)隔板。 i 1354390 100年5月13日修正替換頁 12. 如申請專利範圍第8項所述之鉛酸電池,其中該等隔 板係為聚酯(polyester)材料之不織布隔板。 • 十一、圖式: [ 18 1354390丄354390 Modified on May 13, 100 for the application of patents: L. A mildly gelled electrolyte of a wrong acid battery, which contains: a dilute sulfuric acid; and a low-stone salt particle The cerium salt particles account for about 0.1% to 3% of the total weight of the lightly gelled electrolyte; wherein the cerium salt particles are fumed silica. 2. The lightly gelled electrolyte according to claim 1, wherein the dilute sulfuric acid has a specific gravity of 1.28 to 134. 3. The lightly gelled electrolyte of claim 1, wherein the low amount of crushed salt particles is from 5% to 1% per gram of the total weight of the lightly gelled electrolyte. 4. A lead-acid battery having a lightly gelled electrolyte, comprising: (a) a battery container; (b) a plurality of positive plates and a plurality of negative plates interleaved in the battery container; a plurality of separators disposed between the positive electrode plates and the negative electrode plates; (d) a lightly gelled electrolyte for providing an electrical connection between the positive electrode plates and the negative electrode plates, The lightly gelled electrolyte comprises: a dilute sulfuric acid; and a low amount of barium salt particles and the barium salt particles comprise from about 0.1% to 3% of the total weight of the lightly gelled electrolytic wave; 1354390 May 13, 100 The replacement page is modified in which the stone salt particles are fumed silica. I- 5. The lead-acid battery of claim 4, wherein the dilute sulfuric acid has a specific gravity of 1.28 to 1.34. 6. The lead acid battery of claim 4, wherein the low amount of cerium salt particles is from 0.5% to 1% by weight based on the total weight of the lightly gelled electrolyte. 7. The lead acid battery of claim 4, wherein the lead acid battery is a Valve Regulated Lead Acid Battery (VRLA). The lead-acid battery of claim 4, wherein the separator is an absorbable electrolyte (electr〇lyte-absorptive) separator. 9. The lead acid battery of claim 8, wherein the separator is a glass fiber separator. The lead-acid battery of claim 8, wherein the separator is a polymer nonwoven spacer. U. The lead acid battery according to item 8 of the patent application, wherein the separator is a polycrystalline (p〇ly〇lefin) separator. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; • XI, schema: [ 18 1354390 1616 14 14 第1圖14 14 Figure 1 13543901354390 分鐘minute
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