High Efficiency Energy Storage Using Tailor-made Carbon Gels

碳凝胶是一种独特的多孔炭，具有很高的结构可控性。因此，它们可以用于需要具有受控多孔结构的碳的各种应用。该项目首先建立了一种精确控制碳凝胶结构的方法，然后将这种结构控制的碳凝胶实际应用于锂离子电池、双电层电容器和甲烷储存容器等储能应用中，实现了高储存效率，以极其简单的方法成功地实现了对纳米、微米和毫米级碳凝胶结构的独立控制。因此，我们利用开发的结构控制方法，制备了结构可调的碳，以最大限度地提高其储能能力。通过将所获得的碳应用于各种储能系统，我们获得了极高的储能能力。例如，我们通过使用以细颗粒形式合成的包括硅粉在内的碳凝胶，将锂离子电池碳基阳极的存储容量提高了一倍。我们还使用了量身定制的片状碳凝胶，将碳基双电层电容器的储能能力提高了一倍。

Carbon gels are unique porous carbons, and are known to have a high structure controllability. Therefore they can be used for various applications which require carbons with controlled porous structures. This project was conducted first, to establish, a method for the precise controlling of the structure of carbon gels, and next, to actually apply such structure controlled carbon gels to energy storage applications, such as Li ion batteries, electric double layer capacitors and methane storage vessels and achieve high storage efficiencies.We succeeded in the independent controlling of the nano-, micro-and millimeter level structures of carbon gels by extremely simple methods. Therefore, we used the developed structure controlling methods, and prepared carbons with structures tuned to maximize their energy storage capabilities. We achieved extremely high storage capacities by applying the obtained carbons to various energy storage systems. For example, we doubled the storage capacity of carbon-based anodes for Li ion batteries by using carbon gels including Si powder, which were synthesized in the form of fine particles. We also doubled the energy storage capacities of carbon based electric double layer capacitors, by using tailor made carbon gels synthesized in the form of tablet