Abstract:
PURPOSE: A smart card embedding a super capacitor is provided to enable a rapid charge or an instant discharge at a remote place as well as by a wired connection by using the super capacitor for supplying electric power to a signal process circuit so that it can make only the card itself perform a data process. CONSTITUTION: The smart card comprises a super capacitor(SC), an antenna coil(A), a low pass filter(F), external connectors(11,12), a diode and an IC element(IC). Electromagnetic waves are received by the antenna coil(A), rectified in the diode, transferred to the low pass filter(F), filtered in the low pass filter(F), and converted to DC voltage signals. The DC voltage signals charge the super capacitor(SC). The super capacitor(SC) can be charged also via the external connectors(11,12). The super capacitor(SC) supplies necessary power to the IC elements for processing data or generating signals to external devices. The super capacitor has a specific capacity larger than a conventional capacitor by 100 to 1000, and a power density larger than the latest secondary battery by 10 more so that it can rapidly store the electric power.
Abstract:
본 발명은 건고분자 전해질막 및 그 형성 방법과 그를 이용한 리튬 고분자 전지 제조 방법에 관한 것으로, 전해액이 포집되어 있는 다량의 마이크로 캡슐을 포함하는 고분자 성분의 슬러리로부터 완전 고체형 건고분자 전해질을 형성하는데 그 특징이 있다. 또한 본 발명은 상기 마이크로 캡슐과 지지체 고분자를 이용하여 상기 마이크로 캡슐을 다량 포함하는 완전 고체형의 건고분자 전해질막을 만든 후, 건고분자 전해질막에 물리적인 에너지를 가해 마이크로 캡슐을 파괴해서 마이크로 캡슐 내부의 액체 전해액을 지지체인 건식 고분자막 내부에 퍼뜨림으로써 이온전달 효율과 기계적 특성이 우수한 고분자 전해질을 형성하는데 다른 특징이 있다. 또한, 본 발명은 전술한 고분자 전해질막을 이용한 리튬 고분자 전지 제조 방법을 제공하는데 또 다른 특징이 있다.
Abstract:
A method for manufacturing a lithium phosphaste-based solid electrolyte according to an embodiment of the present invention comprises the steps of preparing a precursor solution including a lithium compound, a phosphate compound and an aluminum compound; forming a first intermediate by conducting a hydrothermal synthesis process for the precursor solution; forming a second intermediate by calcining the first intermediate; and crystallizing the second intermediate. The precursor solution may further include a metal compound or a metalloid compound. The lithium phosphate-based solid electrolyte according to the present invention may have high ionic conductivity and high purity.
Abstract:
A solid polymer electrolyte according to the present invention can have a pattern and various shapes. The solid polymer electrolyte can be made to control the properties of electrolyte paste by controlling the composition ratio of liquid electrolyte, a photo-crosslinking agent and inorganic particles, dispersion and thickness thereof. The solid polymer electrolyte having a pattern can be manufactured from the electrolyte paste through a printing process which can simplify a method for manufacturing a lithium battery. The solid polymer electrolyte can improve, despite the shape thereof, the performance of a lithium battery such as improved interfacial stability between an electrode and the electrolyte, and the inhibited internal short circuit of the lithium battery.