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Single Plate 關鍵製程確認... Workers tiredness Power outage針對原因分析結果進行 DOE 實驗計畫進行驗 證.. Operators not well trained Operators’ mistake Environment temperature Soldering temp.. and time Plates thi

Trang 25

Single Plate

關鍵製程確認

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大密圓盤焊接機大密單機焊接機

免交鏈製程開發

自動點膠機

Trang 28

關鍵製程改善輸入

目標設立 :

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1.挑選實際容量 Ca 大於額定容量的電

池 2PCS 測試初期 20Hr 容量 C20 。2.將電池並聯在 60℃ 環境下定電壓13.5VV 浮充 14 天。

重量,測試 20Hr 容量。

4.4 重複步驟 2 和 3 ,直至電池容量下降至 0.5V C20 時停止測試。

5V.5V 60℃ 下浮充一天,相當於常溫下

浮充 2^ (( 60-25V ) /10 ) =11.3 天

測試結果 : 3.46 年

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LONG Battery 過往問題分 析

a 壽命終止原因分析 : 極板合金腐蝕

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Workers tiredness Power outage

針對原因分析結果進行 DOE 實驗計畫進行驗

Operators not well trained

Operators’ mistake

Environment temperature

Soldering temp and time Plates thickness and weight

Machine Materials

Methods

Clearance of plate lug

Control of plate curing process

Power outage Particle size of

lead powder Acid ingredients

Lead and lead alloy

Environment humidity

Quality

Component Variability Inspection Process Gage R&R

Environment

電池壽命 終止

Wrong method of assembling plate

groups into case

Man

Foolproof design.

Acid volume of batteries

Separators measurement

特性要因分析

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A.1 極板最佳化參數建立

結論 : 極板厚度控制與電池性能為強正相關

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30 35 40 45 50 55

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

D1 D3 D4 D9 D12 D16 D18

Curing Oven Temp.

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00-023-0333 (*) - Lead Oxide Sulfate - Pb5O4SO4/PbSO4·4PbO - WL: 1.5406 - Monoclinic - a 11.53200 - b 11.71700 - c 7.30700 - alpha 90.000 - beta 91.000 - gamma 90.000 - Primitive - P21/a

01-087-0604 (C) - Litharge, syn - PbO - WL: 1.5406 - Tetragonal - a 3.97200 - b 3.97200 - c 5.02300 - alpha 90.000 - beta 90.000 - gamma 90.000 - Primitive - P4/nmm (129) - 2 - 79.2468 - I/Ic P

000290781 (*) Lead Oxide Sulfate Hydrate Pb4O3SO4·H2O WL: 1.5406 Triclinic a 10.30000 b 6.37000 c 7.45000 alpha 87.200 beta 75.000 gamma 79.200 Primitive P*,1 (2)

-MAU_S5 - File: -MAU_S5.raw - Type: 2Th/Th locked - Start: 2.000 ° - End: 55.000 ° - Step: 0.050 ° - Step time: 1.5 s - Temp.: 25 °C (Room) - Time Started: 11 s - 2-Theta: 2.000 ° - Theta: 1.000 °

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A.3 改善分板製程 - 自動分板機導入 改善毛邊之

不良

改善毛邊之 不良 新無毛邊

格子體

新無毛邊 格子體

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  2013Q1 2013Q2 2013Q4 2013Q3 2014Q1 2014Q2 2014Q3

KPH100-12AN

421,151 519,820 646,171 467,547 558,412 581,186 558,504 3,287 3,913 5,258 3,222 1076 1,191 972 0.78% 0.75V% 0.81% 0.69% 0.19% 0.20% 0.17%

KPH110-12N

323,518 129,236 471,940 151,059 160,490 262,450 145,661 2,276 915 3,895 877 355 422 269 0.70% 0.71% 0.83% 0.5V8% 0.22% 0.16% 0.18%

自動分板

結論 : 自動分板機 + 新型無毛邊設計之極板 , 對短路不良率下降有明顯改

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改進電池壽命執行方針

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Problem/Findings: 提升品質管控能力

Action: 導入製程 SPC 品質管理之工段

Improve control point

精進 - 極板生產製程工藝

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精進 - 極板生產製程工藝

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精進 - 極板生產製程工藝

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• 手工包板作業

•Problem/Findings: 改善包板不良

Action: 自動包板機導入使用

● 自動包板機導入使用,降低包板不良造成 之短路不良

組裝工段 : 自動化組裝設備使用

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P owder P article S ize A nalyzer

Negative lead powder

新增檢驗 - 設備鉛粉粒徑分析儀

確保各鉛粉機間之鉛粉粒徑為受控

Positive lead powder

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Scanning Electron Microscopy

Negative plate after curing

Positive plate after curing

Control

新增檢驗 – 掃描式電子顯微鏡

確保熟成後之極板結晶為受控

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• Up to 3 holes on a grid is considered

acceptable

• Only defect free plates will be allowed

• Holes or any partial plate material that is missing is NOT ACCEPTABLE

Action: 標準看板建立

Control

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LONG Batteries Contact

KUNG LONG BATTERES ADD: Addr.: No.6,Tzu-Li 3 Road, Nantou City, Taiwan

Tel: +886-49-2254777 ext: 253 E-Mail: sales@mail.klb.com.tw

To visit our web : www.klb.com.tw

Ngày đăng: 20/04/2019, 21:40

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