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The "Breathing Technique" in Lithium Battery Baking: Decoding the Core Technology of Nitrogen Cycle Why is nitrogen circulation introduced in the vacuum baking of lithium batteries? The seemingly safe inert gas actually hides the risk of condensation! Behind the efficiency improvement is the ultimate control of the "breathing rhythm" by precision technology - this article deciphers the game logic of nitrogen filling, dehumidification and risk prevention and control. Is it necessary to introduce nitrogen circulation during vacuum baking of battery cells? When filling with nitrogen, the pressure inside the cavity will change. Will the moisture condense again and affect the baking effect?

  Wei Weifeng AM, Central South University: Salt-assisted recovery of sodium metal anode for high-rate sodium batteries Background Rechargeable sodium metal batteries are considered to be one of the most promising electrochemical energy storage systems with high energy density and high cost performance. However, the inactive sodium (Na) formed during storage and assembly processes has seriously hindered its practical application. This chemical instability stems from the high activity of Na, which chemically reacts with oxygen and moisture during electrode processing or electrochemically reacts with the electrolyte during battery operation, easily leading to excessive accumulation of inactive Na species on the surface, resulting in battery performance degradation or even failure.