欣旺达动力发布全固态电池，能量密度达400Wh/kg

Core Insights - The core announcement is the launch of the "Xin·Bixiao" polymer all-solid-state battery by Xinwanda Power, which boasts an energy density of 400Wh/kg, marking a significant milestone in lithium battery technology [1][2]. Group 1: Product Development - Xinwanda Power has been developing solid-state batteries since 2015, with the first generation of semi-solid-state batteries achieving an energy density of 300Wh/kg in 2020 [1]. - The company plans to mass-produce the first generation of semi-solid-state aviation power batteries, "Xin·Yunxiao 1.0," in early 2025, with an energy density of 320Wh/kg [1]. - The second generation, "Xin·Yunxiao 2.0," is expected to be launched in mid-2025, with an energy density of 360Wh/kg [1]. Group 2: Performance and Testing - The "Xin·Bixiao" battery can achieve over 1200 cycles at a 20Ah cell under less than 1MPa of external pressure, demonstrating its longevity and reliability [2]. - The battery has successfully passed rigorous testing, including a 200℃ thermal chamber test, indicating its high safety standards [2].