個人積分：9976分
文章編號：61670576
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個人積分：324分
文章編號：61670586
個人積分：868分
文章編號：61670595
個人積分：73分
文章編號：61670640
個人積分：40069分
文章編號：61670666
個人積分：15198分
文章編號：61670739
個人積分：92分
文章編號：61670741
現今智慧手機要越做越薄, 方型鋰離子電池有其機構上的限制,
聚合物電池有其優勢,
但因為聚合物電池要做成可更換式電池比鋰離子電池要難,
加上要可更換電池內機構比內置式電池要來得厚,
所以可以更換電池的機種越來越少, 連三星都棄守這塊領域了.
況且文章裡面呈現的兩個電池照片, 都是方型鋰離子電池照片.
講說三星SDI會收掉大概不知道三星SDI的規模,
簡單的說, 三星集團是靠著三星電子SEC和三星SDI撐起來的,
除了電池以外, 三星SDI還有眾多的電子零配件產品, 規模相當恐怖.
其實這次Note7電池缺陷問題對SDI來說未必不是好事,
搞不好可以一次拋開三星電子產品線的這個賠錢貨,
將心力專注於車用和大型儲能用電池芯與產品,
畢竟這兩塊比起手機電池來說毛利更高, 產品單一性也更高.
個人積分：324分
文章編號：61670762
dragonking16 wrote:
我喜歡這種討論，因...(恕刪)
这篇的解释比较合理
Here's why Samsung Note 7 phones are catching fire
Why Note 7?
What makes the Note 7 different: Samsung may have accidentally squeezed its batteries harder than it should.
According to a unpublished preliminary report sent to Korea's Agency for Technology and Standards (obtained by Bloomberg), Samsung had a manufacturing error that "placed pressure on plates contained within battery cells," which "brought negative and positive poles into contact."
"The defect was revealed when several contributing factors happened simultaneously, which included sub-optimized assembly process that created variations of tension and exposed electrodes due to insufficient insulation tape," a Samsung representative tells CNET.
Or, in plain English: the thin plastic layer that separates the positive and negative sides of the battery got punctured, became the shortest route for electricity to zap across the battery (that's why they call it a "short-circuit"), and became a huge fire risk.
What does pressure have to do with it? MIT materials chemistry Professor Don Sadoway explains that today's cell phone batteries are made by literally pressing together a stack of battery components -- and that battery companies are under pressure (no pun intended) to cram in as much battery capacity as possible.
大意是因為製造裝配過程中產生的張力和絕緣帶的餘量不足等幾個失誤，導致正負極刺破短路。
個人積分：74分
文章編號：61670773
