Novel magnesium-based double-ion lithium battery
A magnesium-based dual, lithium battery technology, applied in secondary batteries, battery electrodes, battery pack components, etc., can solve the problems of high price of ternary lithium batteries, difficulty in meeting low-cost requirements, and limited lithium resource reserves. , to achieve the effect of improving rate performance and cycle performance, increasing service life and safety, and avoiding direct contact
Inactive Publication Date: 2021-06-08
深圳市冰糖柚科技有限公司
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Problems solved by technology
However, lithium resource reserves are limited and unevenly distributed, making it difficult to meet the low-cost requirements of the future society for large-scale energy storage
Especially the high price of cobalt makes the price of conventional ternary lithium batteries remain high
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred d...
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The invention discloses a novel magnesium-based dual-ion lithium battery which comprises a shell, a diaphragm is arranged in the center of the interior of the shell, a positive core rod is arranged in the center of the interior of the diaphragm, expanded graphite is arranged on the peripheral side of the positive core rod, a buffer body is arranged at the top end of the expanded graphite, and a sealing cover is arranged at the top end of the buffer body. The top end of the positive pole core rod is fixedly connected with a positive pole contact end, an insulating sleeve is arranged between the top end of the positive pole core rod and the sealing cover, an insulating ring is arranged in the center of the side wall of the shell, a negative pole contact ring is arranged in the center of the insulating ring, and a negative pole material is arranged in the side wall of the shell. An electrolyte is arranged between the negative electrode material and the expanded graphite, a film stabilizing ring is arranged at the bottom end in the shell, and the buffer body is arranged, so that when the expanded graphite is expanded due to long-time use, the graphite can extrude the buffer body, the influence on the overall structure in the battery is avoided, the service life of the battery is prolonged, and the safety of the battery is improved.
Description
technical field [0001] The invention relates to the field of lithium batteries, in particular to a novel magnesium-based double-ion lithium battery. Background technique [0002] "Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and uses a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M.S.Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream. [0003] Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Li-ion batteries do not contain metallic lithium and are rechargeable. Lithium metal batteries, the...
Claims
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IPC IPC(8): H01M10/058H01M10/056H01M4/583H01M50/46H01M50/166
CPCH01M4/583H01M10/056H01M10/058H01M2004/028Y02E60/10Y02P70/50
Inventor 匡增荣金寿娥匡星衡匡奕衡
Owner 深圳市冰糖柚科技有限公司