Lithium battery

A lithium battery, metal lithium technology, applied in the direction of active material electrodes, electrode carriers/current collectors, etc., can solve problems affecting battery performance and quality, expansion, 5 cracks in positive electrode packs, etc., to improve uniformity and controllability, The effect of improving performance, good current collecting effect

Active Publication Date: 2004-12-22
EVE ENERGY CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the collector tube 7 is inserted into the positive electrode package 5, it often causes cracks, expansion and deformation of the positive elec

Method used

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Embodiment Construction

[0023] Such as image 3 , 4 As shown, the improvement of the present invention to the lithium battery is to replace the current collecting cylinder with a multi-current collector connecting one end of the current collecting needle or the current collecting column 15 with the metal collecting ring 14. The current collecting needle or the current collecting column of the multiple current collector Insert the positive electrode package 5.

[0024] When the positive electrode package uses the carbon package hollow structure, the carbon package specification is 25.0mm in outer diameter, 10.0mm in inner diameter, and 46.0mm in height. The positive electrode collector is used figure 2 The structure of the positive current collecting cylinder shown is that the current collecting steel cylinder has a diameter of 11.0mm and a length of 46.0mm (referred to as the collecting cylinder), and use Figure 4 In the structure of the positive electrode with multiple current collectors, the diameter...

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Abstract

The invention relates to a lithium battery, which is made up of a shell, a bottom film, metal lithium negative electrode, side film, a positive electrode cover, a upper cover film, flow gathering barrel, sealed pin, connecting nickel band, top cover, a glass insulator, a positive end. the character lies in: one end of the flow gathering pin or the gathering pole is connected to a metal flow gathering ring, forms the multiple flow gathering body to replace the flow gathering barrel, the pin or the pole are inserted into the positive electrode cover. The uncontrollable change of positive electrode size and shape can be avoided when inserting the flow gathering barrel into the positive electrode cover, the uniformity and controllability of the battery can be improved, and the performance is improved.

Description

Technical field [0001] The present invention relates to the field of batteries, in particular to the improvement of the structure of lithium batteries. technical background [0002] The long-life high-energy lithium battery has a service life of more than 10 years. The uniformity and reliability requirements of this type of battery performance are very high. Therefore, in the battery production process, the quality of each part must be strictly controlled, so that the performance data of all parts and materials are in a controllable, reliable, and predictable state. [0003] Existing cylindrical lithium batteries with metallic lithium (Li) as the negative electrode, such as Li / SOCl 2 , Li / SO 2 , Li / MnO 2 And other types of batteries, generally used figure 1 The structure shown. figure 1 The fully sealed battery structure shown in is composed of case 1, bottom film 2, metal lithium negative electrode 3, side film 4, positive electrode package 5, upper cove...

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Application Information

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IPC IPC(8): H01M4/02H01M4/64H01M4/66
CPCY02E60/12Y02E60/10
Inventor 刘金成段成李憬梁荣斌庄俊峰
Owner EVE ENERGY CO LTD
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