重大改革！小米YU7电池包做了特别防护，配备1500MPa防刮底横梁

Core Insights - Xiaomi's Yu7 electric vehicle emphasizes battery safety with multiple protective measures, including a 1500MPa anti-scratch beam and a bulletproof coating to absorb impact energy [1][3] Battery Safety Features - The Yu7 features a 1500MPa anti-scratch beam at the front of the battery pack to push away obstacles, ensuring the battery pack is not directly impacted [1] - A bulletproof coating similar to that used in the Xiaomi SU7 Ultra battery pack is applied to the bottom of the battery, effectively reducing damage from scrapes [1] Battery Positioning and Ventilation - Electric vehicle batteries are typically located under the chassis and behind the rear seats, requiring ventilation holes in the battery box to prevent gas accumulation [3] Types of Electric Vehicle Batteries - Lead-acid batteries: Low cost and good low-temperature performance, but low energy density and short lifespan [4] - Nickel-hydride batteries: Cost-effective and durable, but have low energy density and environmental concerns due to heavy metals [4] - Manganese lithium batteries: Low cost and good safety, but unstable and with a shorter lifespan [4] - Ternary lithium batteries: High energy density and long cycle life, making them the mainstream choice for electric vehicles [5] Product Launch Announcement - Xiaomi's Yu7 is set to launch at the end of June, as announced by Lei Jun on social media [5]