Any experience using lithium battery to replace lead acid battery?

本帖最後由 AAA1 於 2012-2-22 09:16 編輯

Anyone uses Li battery as main car battery?


http://www.youtube.com/watch?v=9yXnuVZbYcw

http://www.youtube.com/watch?v=P02NhW6NkfA&feature=related

Unless you want to reduce the weight of the vehicle, there is really no point in switching to Lithium.

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本帖最後由 AAA1 於 2012-2-23 01:17 編輯

http://www.rce168.com.tw/welcome/main/8
quote:
"以磷酸鋰鐵電池取代鉛酸電池做為啟動電池,有足以超越價格障礙的重大價值。說明如下:
1. 節能省油:8 % ~ 30 % 的省油效果
2. 提升性能:扭力增大,怠速滑行距離變長,引擎噪音減少,輕 量化馬力重量比明顯優勢
3. 增加電力:冷氣、照明及汽車音響,效果都有明顯改善,尤其機車改裝HID電流不足情況,差異更大。
4. 提高效率:磷酸鋰鐵電池的能源效率是鉛酸電池 10 倍以上(啟動電池)
5. 長壽耐用:磷酸鋰鐵電池的壽命是鉛酸電池的 5 倍以上,用在啓動電池可長達10年
6. 安全環保:安全與環保性能符合UL、RoHs之規範
7.二次啓動特殊設"

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咁著數, 點解車廠唔用?

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本帖最後由 AAA1 於 2012-2-23 01:31 編輯

Tesla using it

Porsche:
http://www.porsche.com/usa/about ... mp;id=2009-11-23-02

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quote:
"以磷酸鋰鐵電池取代鉛酸電池做為啟動電池,有足以超越價格障礙的重大價值。說明如下:
1. 節能省 ...
AAA1 發表於 2012-2-22 12:15

I am curious, how could replacing a battery affect all these? What is the logic behind?

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http://www.rce168.com.tw/index.php/forum/thread/36/43

Quote:
"汽機車發電機與電池的運作原理
當汽車發動時,由電瓶電源供應起動馬達發動引擎。汽車發動後,由發電機供應全車電器用電。
發電機滿載仍不足供電時,由電瓶遞補。(自行加裝電器常會發生,或發電機老舊效率不佳),
發電機低載時,多餘的電力可快速的將鋰鐵電池充滿電力。
當電池充飽、電器負荷足夠時,發電機的電壓調整器會逐漸降低運作,相對減低油耗。
所以當使用一般電瓶電壓不足、電器負荷增加時,發電機提高發電量維持一定電壓輸出,相對增加油耗。(我們常說市區路段少開冷氣減少耗油就是這個道理)"

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本帖最後由 kenchiuon 於 2012-2-23 10:13 編輯

haha.. just like something 雷神電子汽車整流器...  someone say yes, someone say no...
http://item.taobao.com/item.htm?id=484168508

不過, 話時話, 驗車時唔知使唔使拆走佢? 有無C-hing 知…

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I am curious, how could replacing a battery affect all these? What is the logic behind?
Mugen_C 發表於 2012-2-23 06:48

It looks to me like marketing gimmicks LOL..... without significant benefits (if any)

I have always thought one of the main reasons why lead-acid battery has been used for decades without any real competitors is cos of its physical robustness...performing ok in the relatively hostile conditions in the car bonnet, but not about its energy density.
and if I am not wrong, Li-ion battery is quite sensitive to heat... and it deteriorates quickly in high temperature. I am curious to know how they combat this problem.

Of cos if I'm getting a porsche, then that tiny amount isn't really a concern I suppose.
I am happy to be proven wrong though!

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本帖最後由 AAA1 於 2012-2-23 22:33 編輯

http://lithbattoz.com.au/index.php?page=battey-packs
Quote:
"Another advantage of using a LiFeTech XSB series battery is due its efficiency and fuel saving ability. LiFeTech XSB series batteries are typically 95% charge efficient compared to a charge efficiency of typically around 70% for a lead acid cranking battery. This means that virtually all of the energy produced by the vehicles alternator/generator goes into producing useful energy stored in the battery. This means less of a loading effect on the alternator/generator which translates into fuel savings (or slightly more engine power). Also due to the slightly higher terminal voltage of the LiFePO4 battery, engine electrical systems can work more efficiently and a stronger spark is produced at the spark plug in gasoline powered vehicles."


http://www.voltphreaks.com/technologylsl.php
"A Voltphreaks battery has an extremely long service life, lasting much longer than a comparable lead-acid battery, which helps to offset the higher initial cost of a lithium battery versus a lead-acid battery.

For example, a typical lead-acid battery can be charged and discharged 300 times, after which the battery must be replaced.

A Voltphreaks battery can be charged and discharged over 2000 times!"

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