Lithium ion battery discharge device and method
A lithium-ion battery, battery technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as explosions and fires
Active Publication Date: 2019-07-05
深圳深汕特别合作区乾泰技术有限公司 +2
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The lithium-ion battery is an energy storage device, and there will still be a certain amount of electricity after it is scrapped, and the lithium ion (or lithium metal) is very active, and it will react violently when it meets water or air. If it is disassembled improperly, it will easily cause positive and negative electrodes Short circuit may cause explosion, fire and other safety accidents
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
[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0036] Unless otherwise defined, all technical and scientific terms used herein belong to the embodiment of one skilled in the technical field of the invention and are not intended to limit the invention. As used herein, "and / or" includes any and all combinations of one or more of the associated listed items.
[0037] At present, the safe discharge of waste lithium-ion batteries in the industry mainly adopts two methods: one is physical discharge, such ...
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 relates to a lithium ion battery discharge device and method. The method comprises steps of: monitoring the open-circuit voltage of a battery to be discharged; performing a first-stage discharge on the battery to be discharged; performing a second-stage discharge on the battery to be discharged; and performing a third-stage discharge on the battery to be discharged. By discharging the battery with a low current when the battery is at a high potential (the open-circuit voltage is greater than or equal to a first preset value), discharging the battery with a high current when the battery is at a low potential (the open-circuit voltage is between the first preset value and a second preset value), and discharging the battery with a low current when the battery in an overdischarging state (the open-circuit voltage is less than or equal to the second preset value), the safety of the operation can be ensured, the battery can be completely discharged, and a purpose of stabilization before regeneration is achieved.
Description
technical field [0001] The invention relates to the field of lithium ion battery recycling, in particular to a lithium ion battery discharge device and method. Background technique [0002] Lithium-ion batteries are widely used in many fields, especially mobile phones and electronics industries, due to their outstanding characteristics such as high working voltage, large energy, and small self-discharge. With the continuous development of lithium-ion battery applications, the automotive industry is gradually using lithium-ion batteries as its power source to provide power. However, lithium-ion batteries have a certain life cycle, and once they reach their life cycle, they will face scrapping and decommissioning. [0003] With the widespread application of lithium-ion batteries in my country, especially the rapid development of new energy vehicles, a large number of used lithium-ion batteries will be decommissioned in the future. Regardless of whether these decommissioned l...
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 IPC IPC(8): H02J7/00
CPCH02J2007/0067H02J7/0063
Inventor 张志文邹康迪杨永海
Owner 深圳深汕特别合作区乾泰技术有限公司