可光充电的不对称超级电容器在室内照明下超过21%的光到充电储能效率
Md Aftabuzzaman1, Masud1, Haoran Zhou1
1Department of Advanced Materials Chemistry, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea.
Small (Weinheim an der Bergstrasse, Germany)
|October 5, 2023
概括
研究人员使用多孔碳支架开发了一种新型染料敏化可光充电不对称超级电容器 (DSPC). 该设备实现了高光充电存储效率,非常适合便携式电子产品中的无线电源组.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 可光充电的能量存储对于物联网 (IoT) 设备和便携式电子产品至关重要.
- 目前的局限性包括由于光伏和储能系统 (ESS) 不兼容,特别是室内照明下,光存储效率低.
研究的目的:
- 制造一个集成的染料敏化可光充电非对称超级电容器 (DSPC),具有增强的光到充电存储效率.
- 开发一个方便的制造工艺,用于无线电源组.
主要方法:
- 使用带有MnO-Mn3O4/C微球的多孔碳支架制造单体DSPC.
- 集成染料敏感太阳能电池 (DSSC) 和超级电容器功能.
- 使用聚合物凝电解质开发一个准固态 (QSS) DSPC.
主要成果:
- 集成的DSPC表现出一个高面积特异容量281.9mF cm-2在0.01mA cm-2.2.
- 在1000卢克斯以下,实现了27.6%的光电转换效率.
- 显示了创纪录的光到充电储能效率21.6%.
- QSS DSPC 保持了高效率,并改善了循环稳定性.
结论:
- 开发的DSPC为光可充电储能提供了显著的进步.
- 该设备展示了用于无线电源应用的高性能和方便的制造.
- 这项工作为高效的室内光能收集和储存解决方案铺平了道路.
相关概念视频
Capacitors and Capacitance
7.7K
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
7.7K
Energy Stored in a Capacitor
3.7K
When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
3.7K
Energy Stored in Capacitors
507
A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
507
RC Circuits: Charging A Capacitor
3.7K
A circuit containing resistance and capacitance is called an RC circuit. A capacitor is an electrical component that stores electric charge by storing energy in an electric field. Consider a simple RC circuit having a DC (direct current) voltage source ε, a resistor R, a capacitor C, and a two-way position switch. In the circuit, the capacitor can be charged or discharged depending on the position of the switch.
When the switch is moved to connect the battery, the circuit reduces to a simple...
When the switch is moved to connect the battery, the circuit reduces to a simple...
3.7K
Energy Stored in a Capacitor: Problem Solving
1.1K
In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that can be released over a short time. This property means capacitors have a wide range of applications.
Capacitor-discharge ignition is a type of ignition system commonly found in small engines where the energy released from a capacitor ignites an induction coil that, in turn, fires the spark plug.
To calculate the energy stored in a capacitor of...
Capacitor-discharge ignition is a type of ignition system commonly found in small engines where the energy released from a capacitor ignites an induction coil that, in turn, fires the spark plug.
To calculate the energy stored in a capacitor of...
1.1K
P-N junction
549
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
549


