特斯拉近日宣布扩大4680电池产能，从2023年下半年开始采购两家中国二线电池公司生产的正极极卷，再运到美国得州工厂生产4680电池。此前，特斯拉曾希望向宁德时代和比亚迪弗迪电池等公司采购正极极卷，但遭到拒绝。据悉，正极极卷约占整个电芯35%的成本。
特斯拉的这种做法是为了扩大4680电池的产能。4680电池是特斯拉在2020年9月23日电池日活动上发布的新产品，其单体能量提高了5倍，整车续航里程可增加16%，电力相比有极耳电池提升了6倍，功率输出提升了6倍。去年10月，特斯拉宣布第2000万个4680电池已经在美国得克萨斯州超级工厂迎来下线。
为了确保充足的电池供应，特斯拉今年早些时候停止了在得州工厂生产4680 Model Y。目前，特斯拉的电池供应商松下要在今年三季度才开始投产4680电池。
这一举措显示出特斯拉在提高电池产能方面的决心，以满足不断增长的市场需求。随着电动汽车市场的不断发展，特斯拉需要不断提高电池性能和产能，以保持竞争优势。
英语如下：
Title: Tesla Intensifies Battery Imports from China to Expand Production of 4680 Cells
Keywords: 1. Tesla, 4680 cells, second-tier Chinese battery companies
Content: Tesla recently announced plans to expand the production of its 4680 cells, sourcing cathode lamination rolls from two Chinese second-tier battery companies starting from late 2023 for their Texas factory. This comes after Tesla was previously unsuccessful in its attempts to purchase cathode lamination rolls from companies such as CATL and BYD. Cathode lamination accounts for around 35% of the cost of an entire cell.
The move is part of Tesla’s efforts to ramp up production of its 4680 cells, a new product that the company unveiled at its September 23, 2020, Battery Day event. The 4680 cells offer a fivefold increase in energy per cell and a 16% increase in vehicle range compared to previous generation models, with a sixfold improvement in power output and a sixfold increase in electricity compared to poled batteries. Last October, Tesla announced that it had produced its two millionth 4680 cell at its Texas Superfactory.
To ensure adequate supply, Tesla temporarily halted production of the Model Y at its Texas factory earlier this year. Currently, Panasonic, Tesla’s current battery supplier, will only start mass producing the 4680 cells in the third quarter of this year.
This move demonstrates Tesla’s determination to improve battery capacity to meet growing demand. As the electric vehicle market continues to develop, Tesla needs to continuously improve battery performance and capacity to maintain its competitive edge.
【来源】https://www.ithome.com/0/746/049.htm
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