非同期加熱圧延装置、大幅の極薄金属リチウム箔、並びにその調製方法及び使用

Japanese Patent JP7466635

B2

Provided are an asynchronous heating and calendering device, a large wide ultra-thin lithium metal foil, and preparation method and use thereof, wherein the asynchronous heating and calendering device comprises: a pulling-substrate unwinding unit (E) for unwinding a pulling-substrate (P); a lithium strip unwinding unit (D) for unwinding a lithium strip (S); an asynchronous heating and calendering unit (H) which comprises: a first calendering roller (B), a second calendering roller (A) and a heating box (C), wherein the heating box (C) is used to heat the first calendering roller (B), the first calendering roller (B) heats the pulling-substrate (P), and the first calendering roller (B) and the second calendering roller (A) have parallel axes and are arranged opposite to each other, so that the pulling-substrate (P) and the lithium strip (S) are combined into a composite strip (Z); and a winding unit (G) for winding the composite strip (Z). A large wide ultra-thin lithium metal foil with a uniform thickness may be prepared by providing a heating box (C) and asynchronous first calendering roller (B) and second calendering roller (A) in said device, and the application of this lithium foil in batteries has a relatively high initial efficiency. The width of the lithium foil is 1-600mm; the thickness of the lithium foil is 1-20µm; and the initial efficiency of the battery reaches 98%.

Lee Bun-shun
李永▲偉▼
going to Jin
▲ユ▼会根
何▲亜▼菲
侯宝▲鵬▼

JP2022519376A

April 12, 2024

September 22, 2020

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BEIJING WELION NEW ENERGY TECHNOLOGY CO.,LTD

B23K20/04; B21B1/40

JP2010027673A
JP2014102992A
JP11204144A
JP2018130759A

CN204558583U
CN207806174U

Nagoya International Patent Attorney Corporation

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