Google Translation Text :
中國的消息人士透露,特斯拉將在4月即將舉行的電池日上概述新的電動汽車電池技術,其中將涉及乾電池和超級電容器技術的結合。
這兩種技術的結合將有可能增加能量密度,從而增加行駛距離,並增加充電速度。
當特斯拉在2019年收購電池技術開發商Maxwell Technologies時,2019年 5月發布的一份文件指出,Maxwell用於製造其超級電容器的干電池電極技術“可能是鋰離子電池的突破性技術,尤其是在電動汽車市場。”
現在,中國汽車新聞網站Krypton 36 報導說,一位接近特斯拉的人士告訴中國媒體:“由特斯拉獨立開發的新電池是乾電池技術和超級電容器的結合。預計具體構成將在四月份的特斯拉電池會議上進行解釋。”
特斯拉沒有立即回應確認這份報告的要求,但如果證明是正確的話,特斯拉可能比特斯拉 更加領先。根據日本工程師的 說法,特斯拉憑藉其第3版硬件已經比其他電動汽車製造商領先6年。
人們對特斯拉將為其下一代電池揭露什麼的期望很高。最近的消息表明,與電池製造商CATL的“高級會談”正在進行中,“中國製造”的Model 3s可能採用CATL製造的無鈷磷酸鋰鐵(LFP)化學物質製造。
此後,CATL確認它確實已經簽署了《中國證券雜誌》(CS)報導的量產協議,儘管該報告表明新簽署的協議只能確保大量供應鋰離子電池。
特斯拉隨後在2月21日晚(中國時間)通過其在Douyin上的中國官方賬戶(在澳大利亞和海外稱為TikTok)表示:“無鈷不一定表示磷酸鐵鋰。”
根據CS的說法,特斯拉將在4月的“電池日”上宣布“無鈷”電池,稱其“可能是麥克斯韋使用新型高鎳正極+預鋰化負極+乾式生產的新型鋰離子電池。電池技術+超級電容器電池和採用CTP技術的超級磷酸鐵鋰鋰電池的兩種產品”。
麥克斯韋的干電極技術可以將電池的能量密度提高到300Wh / kg以上,並且有望在未來進一步提高到500Wh / kg,或突破目前300Wh / kg三元鋰電池的瓶頸。
麥克斯韋無鈷電池從長遠來看可能具有高能量密度,低成本,提高的安全性和更快的充電速度的特徵,這將進一步加速電動汽車的全球普及。
但是,Maxwell的無鈷電池是否可以在此階段進行商業化還需拭目以待-帶來“電池日”。
Original Text:
https://thedriven.io/2020/02/26/new-tesla-battery-a-combination-of-dry-cell-and-supercapacitor/
New electric vehicle battery technology from Tesla to be outlined at its upcoming Battery Day in April will involve a combination of dry cell and supercapacitor technology, sources in China have revealed.
The combination of these two technologies would have the potential to increase energy density, and hence driving range, as well as increase charging speed.
When Tesla acquired battery tech developer Maxwell Technologies in 2019, a document released in May 2019 noted that Maxwell’s dry battery electrode technology used to manufacture its ultracapacitors “could be a ground breaking technology for lithium-ion batteries, particularly in the electric vehicle market”.
Now, Chinese automotive news site Krypton 36 reports that a person close to Tesla told Chinese media that: “The new battery independently developed by Tesla is a combination of dry battery technology and supercapacitor. The specific composition is expected to be explained at the Tesla Battery Conference in April.”
Tesla did not immediately respond to a request to confirm this report, but if it proves correct it could put Tesla – already 6 years ahead of other electric vehicle makers with its version 3 hardware, according to Japanese engineers – even further ahead of the game.
Anticipation about what Tesla will reveal for its next generation of batteries is high; recent news indicated that “advanced talks” with battery maker CATL were progressing and that “Made-in-China” Model 3s may be built with a cobalt-free lithium iron phosphate (LFP) chemistry made by CATL.
It has since been confirmed by CATL that it has indeed signed a volume production agreement as reported by the Chinese Securites Journal (CS), though this report indicates the newly signed agreement ensures only a mass supply of lithium-ion batteries.
Tesla later said on the evening of February 21 (China time) via its Chinese official account on Douyin (known as TikTok in Australia and overseas) that “Cobalt-free does not necessarily mean lithium iron phosphate.”
According to CS, Tesla will instead announce “cobalt-free” batteries at its Battery Day in April, saying it is “probably a new type of lithium ion produced by Maxwell using a new high nickel positive electrode + pre-lithiated negative electrode + dry battery technology + supercapacitor battery and two products of super lithium iron phosphate battery using CTP technology” (translated from Chinese).
Maxwell’s dry electrode technology can increase the cell’s energy density to more than 300Wh/kg, and it is expected to further increase to 500Wh/kg in the future, or break the current bottleneck of 300Wh/kg of ternary lithium batteries.
Maxwell cobalt-free batteries may have the characteristics of high energy density, low cost, improved safety, and faster charging speed in the long run, which will further accelerate the global penetration of electric vehicles.
However, it remains to be seen whether Maxwell’s cobalt-free batteries can be commercialized at this stage – bring on Battery Day.
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