CN105514437A - 一种包含石墨烯的二次电池 - Google Patents

一种包含石墨烯的二次电池 Download PDF

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Publication number
CN105514437A
CN105514437A CN201610105920.9A CN201610105920A CN105514437A CN 105514437 A CN105514437 A CN 105514437A CN 201610105920 A CN201610105920 A CN 201610105920A CN 105514437 A CN105514437 A CN 105514437A
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plate
battery
negative plate
secondary battery
negative
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杨云胜
杨星
郭颢
蒋伟良
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JIANGSU ZHONGYA NEW MATERIAL CO Ltd
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JIANGSU ZHONGYA NEW MATERIAL CO Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

一种包含石墨烯的二次电池，由电解液（1）、隔离层（2）、正极板（3）、负极板（4）与电池外壳（5）组成，所述的正极板（3）与负极板（4）被制成薄板或箔状；其特征在于：所述的负极板（4）由石墨烯材料制成薄板或箔状，把正极板（3）、负极板（4）及介于其间的隔离层（2）按顺序层叠或者螺旋状缠绕而形成电芯，再把电芯装入电池外壳（5）中，注入电解液（1），密封制成电池。本发明，通过石墨烯材料制成负极板，大大提高了二次电池的电池寿命，充电速度快，电池循环性能好，容量更加大更加安全。

Description

一种包含石墨烯的二次电池
技术领域
本发明涉及化学电源技术领域，特别是一种包含石墨烯的二次电池。
背景技术
锂离子二次电池作为一种新型的高能二次电源，具有比能量大、放电电压平衡、电压高、低温性能好、对环境友好、安全性能优越、无记忆效应和循环寿命长等优点。锂离子二次电池的主要构成包括电解液、隔离层、正极、负极等，锂离子二次电池能否成功应用，关键在于负极材料的制备；正、负极材料的质量比为3：1~4：1，一般商用锂离子电池的负极材料使用较多的有人工石墨与中间相碳微球(MCMB)、天然石墨；由于石墨间距(d002=0.34nm)小于锂-层间化合物Li-GIC的晶面层间距(d002=0.37nm)，致使在充放电过程中，石墨层间距改变，易造成石墨层剥落、粉化；还会发生有机溶剂分解，锂与有机溶剂共同嵌入石墨层，将影响电池循环性能，而且MCMB价格昂贵，是人造石墨的12~15倍。另外天然石墨作为负极材料不可逆容量高，与电解液相容性差、循环性能较差，这些固有缺陷限制了天然石墨在锂离子电池中的应用，而且其放电电容量高达360mAh/g，其片状结构在锂离子重覆嵌入、嵌出下，层间结构易被破坏，这样电池寿命较短。
发明内容
针对上述缺陷，本发明的目的在于提供一种包含石墨烯的二次电池，将石墨烯材料压制成薄板或箔状，作为负极板，把正极板、负极板及介于其间的隔离层按顺序层叠或者螺旋状缠绕而形成电芯，再把电芯装入电池外壳中，注入电解液，密封制成电池。
本发明采用的技术方案是：一种包含石墨烯的二次电池，由电解液、隔离层、正极板、负极板与电池外壳组成；其特征在于：所述的正极板与负极板被作成薄板或箔状，负极板由石墨烯材料制成，把正极板、负极板及介于其间的隔离层按顺序层叠或者螺旋状缠绕而形成电芯，再把电芯装入电池外壳中，注入电解液，密封制成电池。
本发明，通过石墨烯材料制成负极板，大大提高了二次电池的电池寿命，充电速度快，电池循环性能好，容量更加大更加安全。
附图说明
图1是本发明的结构图。
图中：1为电解液、2为隔离层、3为正极板、4为负极板、5为电池外壳。
具体实施方式
由图1知，一种包含石墨烯的二次电池，由电解液1、隔离层2、正极板3、负极板4与电池外壳5组成；所述的正极板3与负极板4被作成薄板或箔状，负极板4由石墨烯材料制成。然后把正极板3、负极板4及介于其间的隔离层2按顺序层叠或者螺旋状缠绕而形成电芯，再把电芯装入不锈钢、镀镍的铁、铝金属外壳或者叠层软包装薄膜电池容器中（统称电池外壳5），注入电解液1，密封制成电池。通过石墨烯材料制成负极板，大大提高了二次电池的电池寿命，充电速度快，电池循环性能好，容量更加大更加安全。

Claims (1)

1.一种包含石墨烯的二次电池，由电解液（1）、隔离层（2）、正极板（3）、负极板（4）与电池外壳（5）组成，所述的正极板（3）与负极板（4）被制成薄板或箔状；其特征在于：所述的负极板（4）由石墨烯材料制成薄板或箔状，把正极板（3）、负极板（4）及介于其间的隔离层（2）按顺序层叠或者螺旋状缠绕而形成电芯，再把电芯装入电池外壳（5）中，注入电解液（1），密封制成电池。
CN201610105920.9A 2016-02-26 2016-02-26 一种包含石墨烯的二次电池 Pending CN105514437A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572327A (zh) * 2009-06-11 2009-11-04 天津大学 石墨烯为负极材料的锂离子电池
CN101937985A (zh) * 2010-08-19 2011-01-05 北京科技大学 一种石墨烯/二氧化钛锂离子电池负极材料及制备方法
CN103840131A (zh) * 2014-03-27 2014-06-04 合肥国轩高科动力能源股份公司 一种新型锂离子电池
KR20150128592A (ko) * 2014-05-09 2015-11-18 주식회사 엘지화학 그래핀 피복된 다공성 실리콘-탄소 복합체 및 이의 제조방법
CN205388989U (zh) * 2016-02-26 2016-07-20 江苏中亚新材料股份有限公司 一种包含石墨烯的二次电池

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572327A (zh) * 2009-06-11 2009-11-04 天津大学 石墨烯为负极材料的锂离子电池
CN101937985A (zh) * 2010-08-19 2011-01-05 北京科技大学 一种石墨烯/二氧化钛锂离子电池负极材料及制备方法
CN103840131A (zh) * 2014-03-27 2014-06-04 合肥国轩高科动力能源股份公司 一种新型锂离子电池
KR20150128592A (ko) * 2014-05-09 2015-11-18 주식회사 엘지화학 그래핀 피복된 다공성 실리콘-탄소 복합체 및 이의 제조방법
CN205388989U (zh) * 2016-02-26 2016-07-20 江苏中亚新材料股份有限公司 一种包含石墨烯的二次电池

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