近來TESLA電動車突如其來的竄起，掀起對電動車產業供應鏈的浪潮，顛覆以往對電動車的舊觀念，創新科技讓電動車有更多的機會持續進步。過去電動車與汽油車對環境生態污染的比較皆是電動車有所優勢，但是由於安全性與品質未能穩定控制，過去便乏人問津。如今科技進步下，讓電動車更容易向前邁進。電池產業也在此時受到關注，從上游、中游、下游產業來分析獲利情況，可以得知下游產業獲利機會較高，中游、上游產業幾乎虧損。下游產業毛利率也較高，也是金牛事業。中游、上游產業毛利較低，大部分都是問題兒童事業，需要有強力的母公司持續資金投入，或是多角化經營降低對單一產業的依賴。但還是有少數事業因為產品打入APPLE手機供應商成為金牛事業，其餘虧損事業無疑是很難在電池產業繼續經營，必須要依賴金牛事業轉投資到資金缺乏的中游、上游產業，或是政府國家開發基金共同投入資金，拋磚引玉帶動整體產業蓬勃發展，不然問題兒童事業長期虧損下，終將走入瘦狗事業清算解散。
本論文研究利用財務報表之現金流量表改變成自由現金流，利用營業現金流量與投資金額來評估金牛事業、明星事業及問題兒童事業在何處，讓金牛事業可以投資問題兒童事業，強化整個產業供應鏈，讓技術不再外流與成本得到控制，不需仰賴進口。台灣目前電池產業規模都相對較小，無法與國際大廠相比，只能依賴各金牛事業或是政府國發基金來大力扶植產業。

Recently, the sudden rise of TESLA electric vehicles has set off a wave of the electric vehicle industry chain, subverting the old concept of electric vehicles in the past, and innovation of technology has given electric vehicles more opportunities to progress.
In the past, the comparison between electric vehicles and gasoline vehicles on environmental and ecological pollution was that electric vehicles had advantages. However, the lack of stable control of safety and quality, there was little interest in the past. Nowadays, technological advancement makes it easier for electric vehicles to move forward.
The battery industry is also receiving attention at this time. From the study of profitability from the upstream, midstream, and downstream industries, we can see that the downstream industries have higher profit opportunities, and the midstream and upstream industries are almost at a loss. The downstream industry has a higher gross profit margin, which is also a cash cows business. The midstream and upstream industries have low gross profit, and most of them are question marks businesses, which require a strong parent company's capital investment, or diversified operations to reduce reliance on a single industry.
However, there are still a few businesses that have become cash cows businesses because of their products entering APPLE mobile phone suppliers. The rest of the loss-making businesses are undoubtedly difficult to operate in the battery industry. They must rely on cash cows businesses to reinvest in midstream, upstream industries that lack investing and government funds.
This paper studies the use of the cash flow statement of financial statements to change into free cash flow, and uses working capital and investment amount to evaluate where the cash cows business, stars business and question marks business are, so that cash cows business can invest in question marks business and strengthen the entire industry.

論文審定書………………………………………………………………………………………i
誌謝……………………………………………………………………………………………...ii
中文摘要……………………………………………………………………………………….. iii
英文摘要……………………………………………………………………………………….. iv
目錄……………………………………………………………………………………………… v
圖次……………………………………………………………………………………………. vii
表次……………………………………………………………………………………………viii
第一章 緒論……………………………………………………………………………………..1
1.1研究背景與動機………………………………………………………………………...1
1.2研究目的與問題 3
1.3研究範圍 3
1.4研究方法 3
1.5論文架構 4
第二章 文獻回顧 5
2.1 鋰電池材料之相關文獻 5
2.2 鋰電池的原理 9
2.3 鋰電池材料及製作 10
2.4 鋰電池芯製程 20
2.5 鋰電池芯設計 21
2.6 鋰電池芯之電性分析 22
2.7 鋰電池安全測試 23
2.8 鋰電池模組之應用 25
第三章 台韓日中美之產業結構 26
第四章 鋰電池產業生態與財務分析 30
4.1產業生態 30
4.2 資金供需狀況 32
4.3產業生態之金牛事業 56
4.4目前之問題兒童事業需要資金支持 56
第五章 結論與建議 57
參考文獻 59

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三、相關網站
公開資訊觀測站，https://mopsfin.twse.com.tw/
新浪財經，https://finance.sina.com.cn/
科技新報，https://technews.tw/
鉅亨網，https://www.cnyes.com/
數位時代，https://www.bnext.com.tw/