Both versions are aligned block by block, in reading order: title, the essentials, then paragraph by paragraph. Where the translation merged or split a paragraph, the matching cell stays empty — we never pair two passages by guesswork.
一块投影尺寸为2.8米×1.5米的电池壳体样件，已经在麦格纳下线。研发工程师董晓轩介绍，这个名为OptiForm™的一体成型托盘可供客户开展装包验证；它还把拔模角做到1.5°、底部圆角做到4mm，试图把传统冲压结构“吃掉”的电芯空间还回来。
A battery enclosure prototype with a footprint of 2.8 m × 1.5 m has rolled off the line at Magna. R&D engineer Dong Xiaoxuan said the one-piece tray, called OptiForm™, is available for customers to conduct pack integration validation. It also achieves a 1.5° draft angle and 4 mm bottom radii, seeking to reclaim cell space traditionally “consumed” by stamped structures.
电池壳体要同时装下电芯、挡住碰撞、隔绝水汽和灰尘，还要尽量轻、尽量便宜。过去常见的铝挤压型材重量轻但成本略高，高强钢辊压件成本较低、抗冲击强，却更重。两条路线都需要许多零件焊接，焊缝多意味着热变形更明显，密封也更依赖每一道焊缝的质量；随着车辆长期振动和材料老化，连接点越多，后期泄漏风险越高。
A battery enclosure must fit the cells, withstand crashes, keep out moisture and dust, and remain as light and inexpensive as possible. Aluminum extrusions, once a common option, are lightweight but somewhat more expensive. High-strength steel roll-formed parts cost less and offer strong impact resistance, but are heavier. Both approaches require numerous parts to be welded together. More welds mean more pronounced thermal distortion, while sealing becomes more dependent on the quality of each weld. As vehicles undergo long-term vibration and materials age, more connection points also mean a higher risk of leaks later in the vehicle’s life.
麦格纳给出的办法，是把一整块钢板冲压成托盘，再在内部加入加强结构。传统冲压把平板钢材拉延，即拉成又深又大的壳体时，往往需要更大的拔模角，也就是让侧壁向外倾斜，并留下较大的圆角以避免开裂。OptiForm™把拉延深度做到160毫米，料厚覆盖0.9-1.8mm，在不改变外部尺寸的情况下减少这些空间损失。麦格纳称，电池容量最多可增加10%，但徐子卿也明确表示，最终能转化为多少电量或续航，取决于整车平台和电池系统设计。
Magna’s approach is to stamp a single steel sheet into a tray and then add reinforcing structures inside. When conventional stamping draws flat steel into a deep, large enclosure, it often requires a larger draft angle—that is, sidewalls that slope outward—and larger radii to prevent cracking. OptiForm™ achieves a 160 mm draw depth and covers material thicknesses of 0.9–1.8 mm, reducing these space losses without changing the external dimensions. Magna says battery capacity could increase by up to 10%, but Xu Ziqing also made clear that how much ultimately translates into additional energy or range depends on the vehicle platform and battery-system design.
那么，具体改变是什么？车身尺寸不变时，多出来的空间可以布置更多电芯，也可以在续航目标不变的前提下，为减重或降本留下余量；焊缝、零件、工序和装配减少，则有望降低系统成本。方案使用成熟冲压工艺，现有冲压设备即可完成，切换的主要工作量不在产线改造，而在前期工艺分析、模具调试和整车级验证。
So, what exactly changes? When the vehicle’s dimensions remain unchanged, the additional space can accommodate more cells. Alternatively, if the range target remains unchanged, it can provide room for weight or cost reductions. Fewer welds, parts, processes and assembly operations could also reduce system costs. The approach uses mature stamping processes and can be completed with existing stamping equipment. Most of the transition workload lies not in modifying the production line, but in upfront process analysis, tooling adjustment and vehicle-level validation.
它也不是所有车型的统一答案。一种架构把侧碰载荷交给门槛和车身地板横梁，让电池壳体主要负责保护、密封和热管理；另一种仍让电池包承担部分碰撞载荷，需要配合热成型加强梁、补强结构等设计。两种方案都要求主机厂在平台早期共同定义安装点、载荷传递路径和电池安全边界。OptiForm™样件已经出现，但模具和开发投入不小，更适合有一定产量规模、平台周期较长或多个车型能够共用包络与工艺路线的项目。
It is not a universal answer for every vehicle. In one architecture, the rocker panels and crossmembers in the vehicle floor carry side-impact loads, leaving the battery enclosure primarily responsible for protection, sealing and thermal management. In another, the battery pack still carries part of the crash load and must work with hot-formed reinforcement beams and other strengthening structures. Both approaches require automakers to define mounting points, load paths and battery safety boundaries jointly at an early platform stage. The OptiForm™ prototype now exists, but tooling and development costs are substantial. The solution is better suited to projects with sufficient production volume, long platform lifecycles or multiple vehicle models that can share the same package envelope and manufacturing route.