Button lithium cell and preparation method thereof

A lithium battery and electrolyte technology, applied in the battery field, can solve the problems of low efficiency, high cost, and the battery electrical performance cannot fully meet the "power discharge characteristics, stable discharge platform and higher capacity".

Inactive Publication Date: 2012-01-11
PRO TEK SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The positive electrodes of the above eight structures, due to their structural characteristics, show that their functions are separation or current collection effect or ring solidification effect, and the electrical properties of the produced batteries cannot fully meet the "power discharge characteristics, stable discharge platform and higher capacity” requirements; and the manufacturing process is complex, costly, and inefficient, making it difficult to meet the application requirements of new fields

Method used

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  • Button lithium cell and preparation method thereof
  • Button lithium cell and preparation method thereof
  • Button lithium cell and preparation method thereof

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Embodiment Construction

[0047] Such as Figure 4 As shown, a button-type lithium battery includes a negative electrode casing 401, a negative electrode current collector 402, a negative electrode 403, a positive electrode 406, a diaphragm 404 (containing electrolyte), a sealing rubber ring 405, a ring network integrated positive electrode ring 407, and a positive electrode casing 408. A negative electrode current collector 402 is arranged between the negative electrode 403 and the negative electrode casing 401, and a ring network integrated positive electrode ring 407 is arranged between the positive electrode 406 and the positive electrode casing 408, wherein the diaphragm 404 is arranged between the negative electrode 403 and the positive electrode 406, and the positive electrode 406 A diaphragm 404 is provided on one side, and the opposite side is covered by a current collector. A metal ring is provided on the outer side of the positive electrode. The metal ring and the current collector are integr...

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Abstract

The invention discloses a button lithium cell, which comprises a cathode, an anode, a diaphragm, electrolyte, an anode shell and a cathode shell, wherein the diaphragm is arranged between the cathode and the anode; and the diaphragm is arranged on one side of the anode, the opposite side of the anode is covered by a current collector, a metal ring is arranged on the external side of the anode, the metal ring and the current collector are integrally arranged to form a ring network integrated anode ring, and the ring network integrated anode ring is covered by an anode powder cake to form a ring network integrated anode. The button lithium cell has a high discharge platform and a very good power discharge characteristic, the utilization ratio of anode and cathode active substances is greatly promoted and the battery capacity is increased.

Description

technical field [0001] The invention relates to the battery field, in particular to a button lithium battery and a preparation method thereof. Background technique [0002] Button-type lithium battery is a new type of chemical power source. As the main force of chemical power source, its market prospect is extremely broad, and it can be used as power source and memory power source. As a power source, lithium batteries are used more and more in medical products and remote control technology; as a memory power source, they have been widely used in computer motherboards and other fields. In particular, lithium batteries have been widely used in RFID, and with the development of RFID technology, its application range will be extremely wide. However, the button lithium batteries used in these fields have higher electrical performance requirements, which require lithium batteries to have better "power discharge characteristics, stable discharge platform and higher capacity". [...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M6/14H01M6/00H01M10/058H01M4/02H01M4/04
CPCH01M4/74H01M10/0525H01M4/661H01M4/70H01M2/0222H01M6/14H01M6/12H01M10/0427Y02E60/122H01M50/109Y02E60/10Y02P70/50
Inventor 王建黄建昌陈汉珠王保军黎传宝
Owner PRO TEK SHENZHEN
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