【超小的液体电池 供电的同时还能冷却芯片】

【超小的液体电池  供电的同时还能冷却芯片】近日,苏黎世联邦理工学院的科学家打造了一款有供电和冷却双重功能的液体电池,这种新型化学电池无毒、无腐蚀性,并且拥有相当长的使用寿命,还能显著降低电池的生产成本。同时这种液体电池还能利用太阳能或者风能进行电量储存。

Tiny liquid battery cools chips while powering them

 

Scientists from IBM and ETH Zurich university have built a tiny "flow" battery that has the dual benefit of supplying power to chips and cooling them at the same time. Even taking pumping into account, it produces enough energy to power a chip while dissipating much more heat than it generates. The result could be smaller, more efficient chips, solar cells that store their own energy or devices used for remote monitoring that don't require external power sources.

"Redox flow" batteries that use liquid electrolytes are normally used on a large scale to store energy. For instance, Harvard Researchers recentlycreated one that can last over ten years with very little degradation, making it ideal to store solar or wind energy.

Building them on a scale tiny enough for chips is another matter, however. The team from ETH Zurich and IBM managed to find two liquids that are suitable both as flow-battery electrolytes and cooling agents that can dissipate heat from chips in the same circuit. "We are the first scientists to build such a small flow battery so as to combine energy supply and cooling," says doctoral student Julian Marschewski.

Using 3D printing, the team developed a wedge-shaped micro-channel system that supplies the system with electrolytes using very little pumping power. The resulting electrodes press liquid into the membrane layer where ions can flow, generating power. The result is a system that generates 1.4 watts per square centimeter, with 1 watt left over to power the battery after taking pumping into account. Moreover, it gets rid of a lot more heat than it makes, pulling off the neat trick of powering and cooling chips at the same time.

The battery needs to generate more electricity than it does right now, so the idea now needs to shift from the research into the engineering stages. However, the team thinks that it has a lot of potential for not just chips, but also lasers that require internal cooling, solar cells that store electricity directly in the battery cell and even large flow batteries optimized with liquid cooling channels.

 


Comments are closed.



无觅相关文章插件