Method and device for reasonably charging lithium ion battery in photovoltaic micro-energy resource system
A lithium-ion battery, photovoltaic battery technology, applied in battery circuit devices, circuit devices, systems for storing electrical energy, etc., can solve the problem of shortening the service life of lithium-ion batteries, not seeing reasonable charging of lithium-ion batteries, and not satisfying lithium-ion batteries. Reasonable charging requirements and other issues to achieve the effect of improving output efficiency and service life
Inactive Publication Date: 2010-11-10
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in this patent, the lithium-ion battery is charged directly by photovoltaic cells, which does not meet the requirements for reasonable charging of the lithium-ion battery and will shorten the service life of the lithium-ion battery.
At present, in the photoelectric micro-energy system, there is no better way to charge lithium-ion batteries reasonably.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for charging a lithium ion battery reasonably in a photovoltaic micro-energy system and a device thereof, belonging to the electrooptical technical field. The method includes that the lithium ion battery and a super capacitor are connected in parallel in the photovoltaic micro-energy system, an energy storage controller is adopted to control an energy storage switch, and energy stored temporarily in the super capacitor is used for intermittently charging the lithium ion battery by a constant flow source, thereby meeting the requirements for charging the lithium ion battery reasonably. The device comprises a photovoltaic cell, a diode, the super capacitor, the energy storage controller, the energy storage switch, the constant flow source and the lithium ionbattery. As an energy buffer, the super capacitor stores the output energy of the photovoltaic cell and charges the lithium ion battery by the energy storage switch and the constant flow source underthe control of the energy storage controller. In the invention, the terminal voltage of the super capacitor is set reasonably according to the output characteristics of the photovoltaic cell, therebyimproving the delivery efficiency and prolonging service life of the photovoltaic cell.
Description
Method and device for reasonably charging lithium-ion battery in photovoltaic micro-energy system technical field The invention relates to a method and a device for reasonably charging a lithium-ion battery in a photovoltaic micro-energy system, belonging to the field of photoelectric technology. Background technique With the development of microelectronics technology, computer technology and network technology, the application of microsystems (for example: wireless sensor nodes) in industry, agriculture, environment and military fields is expanding day by day. For wireless sensor networks, due to the large number of sensor nodes, and most of them are placed in remote and dangerous places, the method of using traditional dry battery power supply increases the cost of network maintenance. Therefore, it is necessary to design a reasonable energy supply method for sensor nodes. In the external environment, solar energy is the most easily obtained energy source, and photovolt...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J15/00
CPCY02E70/30
Inventor 刘丽辉何永泰李艳秋王磊
Owner BEIJING INSTITUTE OF TECHNOLOGYGY