科学家提出全气候电池设计框架

Core Viewpoint - An innovative all-climate battery design framework proposed by scientists at Pennsylvania State University aims to enhance the efficiency and stability of lithium-ion batteries across a wide temperature range, addressing their limitations in extreme conditions [1][3]. Group 1: Battery Design and Functionality - The new design incorporates optimized materials and an internal heating system, allowing lithium-ion batteries to perform well in various climates [3]. - The operational temperature range of current lithium-ion batteries is between -30°C and 45°C, which poses challenges for stability as electric vehicles and large systems become more prevalent [3]. - The proposed all-climate battery integrates heating elements within the battery, enabling safe and stable operation in high-temperature environments and self-heating mechanisms to cope with cold conditions [3]. Group 2: Technical Innovations - The internal heating structure of the new battery design uses nickel foil with a thickness of approximately 10 micrometers, powered entirely by the battery itself, which allows for self-regulation of temperature without significantly increasing weight or volume [3]. - This design expands the reliable operating temperature range of the battery to -50°C to 75°C, making it suitable for scenarios where traditional lithium-ion batteries struggle [3]. - By incorporating thermal management functions internally, the new design significantly reduces the space required for the battery system and eliminates reliance on external temperature control devices, simplifying the overall system structure [3].