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Title:
SECONDARY BATTERY OF ZINC-LITHIUM-MANGANESE WATER SYSTEM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/190584
Kind Code:
A1
Abstract:
Disclosed are a secondary battery of a zinc-lithium-manganese water system and a preparation method therefor, wherein same fall within the battery manufacturing field. The secondary battery of a zinc-lithium-manganese water system comprises a positive electrode, a negative electrode, an electrolyte and a separator between the positive electrode and the negative electrode. An active material of the positive electrode is a manganese lithium oxide material; an active material of the negative electrode is zinc or a zinc compound; and the electrolyte is a neutral aqueous solution containing a lithium salt and a zinc salt. The secondary battery is characterized in: the separator being an ionic polymer membrane composed of acrylate polymer colloidal particles with sulfonate groups on the surface. The secondary battery of a zinc-lithium-manganese water system has a stable performance and a long cycle life, can be industrially produced, and has a uniform electric field inside the battery. The secondary battery of a zinc-lithium-manganese water system solves the problem that the dendrite growth and the side reactions related thereto result in non-practicability of a battery, such that the zinc-lithium-manganese battery has the characteristics of a high energy density, long cycle life, high safety and low cost; and the scale industrialization of a secondary battery of a zinc-lithium-manganese water system can be realized, and the development of same in fields such as electric vehicles and power energy storage can be promoted.

Inventors:
PAN ZHONGLAI (CN)
DENG JIAMIN (CN)
WANG LU (CN)
GAO JIANDONG (CN)
DENG ZHENGHUA (CN)
DU HONGCHANG (CN)
LI RENGUI (CN)
Application Number:
PCT/CN2017/080576
Publication Date:
November 09, 2017
Filing Date:
April 14, 2017
Export Citation:
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Assignee:
CHENGDU ZHONGKE LAIFANG POWER SCIENCE & TECH CO LTD (CN)
International Classes:
H01M10/38; H01M50/403; H01M50/411
Foreign References:
CN105070901A2015-11-18
CN102719046A2012-10-10
CN101375435A2009-02-25
CN105470438A2016-04-06
JP2006100121A2006-04-13
CN101434708A2009-05-20
Attorney, Agent or Firm:
SISUN INTELLECTUAL PROPERTY AGENT CO., LTD. (CN)
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