在电动汽车电池组中的Tab-to-Busbar互连:典型接方法的入门审查
Sooyong Choi1, Sooman Lim2, Ali Shan2
1Department of Intelligent Semiconductor Engineering, Chung-Ang University, Seoul 06974, Republic of Korea.
Micromachines
|January 28, 2026
概括
本综述比较了离子电池互连的接方法,发现超声波接 (USW) 限制了缺陷,但对几何结构敏感. 激光束接 (LBW) 提供了速度,而电阻接 (RW) 则具有成本效益,没有单一的最佳方法.
科学领域:
- 材料科学与工程 材料科学与工程
- 电化学 储能 储能 电化学 储能
- 制造过程 制造过程 制造过程
背景情况:
- Tab-to-busbar互连对于离子电池组的性能和安全至关重要.
- 常见的材料包括,铜和铜.
- 了解接过程是可靠电池制造的关键.
研究的目的:
- 审查和比较电池互连的电阻接 (RW),激光束接 (LBW) 和超声波接 (USW).
- 分析基于热量输入,金,电阻,机械强度和可制造性的接方法.
- 总结总线条材料和厚度对连接电阻和热性能的影响.
主要方法:
- 对RW,LBW和USW技术进行比较分析.
- 对界面金,电阻和机械性能进行评估.
- 审查制造考虑因素,包括速度,自动化和材料兼容性.
主要成果:
- 超声波接 (USW) 在抑制多孔性和限制不同接头的金属间生长方面表现出色,但对堆几何和工具磨损敏感.
- 激光束接 (LBW) 提供适合自动化的高速,精确的能量传递,但需要控制喷雾和脆性金属间化合物 (IMC) 形成.
- 电阻 (RW) 具有成本效益和灵活性,但可以在高导电堆中面临电极磨损和变化的挑战.
结论:
- 对于tab-to-busbar互连,没有单一的接工艺是普遍最佳的.
- 选择标准必须与特定的堆配置,可靠性要求和生产限制保持一致.
- 该审查强调了未来电池互连应用的趋势和非传统方法.
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