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Summary & Details

Development of BEV Battery Pack and Key Technologies Utilizing Advanced Steel Sheets (Second Report) Development of Lower Case Solutions for Eliminating Electrodeposition Coating

高機能鋼板を活用したBEVバッテリーパックと要素技術の開発（第二報）電着塗装削減に向けたロアケースソリューション開発

Delivery: Available on this site

Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20265245

Paper/Info type: Proceedings (Spring)

No.57-26

Pages: 1-3(Total 3 p)

Date of publication: May 2026

Publisher: JSAE

Language: Japanese

Event: 2026 JSAE Annual Congress (Spring)

Detailed Information

Author(J)	1) 谷口大河, 2) 木本野樹, 3) 古賀敦雄, 4) 東新邦彦, 5) 吉田博司
Author(E)	1) Taiga Taniguchi, 2) Naoki Kimoto, 3) Atsuo Koga, 4) Kunihiko Tohshin, 5) Hiroshi Yoshida
Affiliation(J)	1) 日本製鉄, 2) 日本製鉄, 3) 日本製鉄, 4) 日本製鉄, 5) 日本製鉄
Affiliation(E)	1) Nippon Steel, 2) Nippon Steel, 3) Nippon Steel, 4) Nippon Steel, 5) Nippon Steel
Abstract(J)	コスト低減とCO₂排出削減を目的に，電着塗装を省略した高耐食めっき鋼板製バッテリーボックスの開発を行った．高耐食めっき鋼板のスポット溶接では，適正電流範囲は確保できたが，溶接部の耐食性低下や液体金属脆化が発生した．これらは，鋼板表層の温度上昇が原因であったため，電流密度の制御によって課題解決を試みた． Translation
Abstract(E)	To achieve cost reduction and CO₂ emission cuts, we developed a battery box using high-corrosion-resistant coated steel without electrodeposition coating. Spot welding achieved an appropriate current range but led to corrosion degradation and liquid metal embrittlement due to excessive surface heating. To address these issues, we attempted to control current density at the steel surface.

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