CN104319417A - 锰酸锂和镍钴锰酸锂纳米电池 - Google Patents
锰酸锂和镍钴锰酸锂纳米电池 Download PDFInfo
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Abstract
本发明公开了一种锰酸锂和镍钴锰酸锂纳米电池,包括正极、负极、多个隔膜、聚合物凝胶电解质、电池壳体,其特征在于,包括:正极由正极活性物质、粘结剂、导电剂和正极集流体组成,正极活性物质采用采用锰酸锂、镍钴锰酸锂材料;粘结剂采用聚偏氟乙烯;导电剂采用导电炭黑、导电石墨、鳞片石墨、纳米碳、纤维粉中的一种或多种;正极集流体采用铝箔;镍钴锰酸铝35%-45%;锰酸锂35%-45%;纳米碳、纤维粉3%-6%;导电炭黑2%-4%。鳞片石墨1%-4%;聚偏氟乙烯4%-7%;余量为铝箔,提高锰酸锂和镍钴锰酸动力电池比能量、功率、容量、放电效率、使用寿命、安全性和结构稳定性。
Description
技术领域
本发明动力电池及其制作方法,特别涉及一种锰酸锂和镍钴锰酸锂纳米电池。
背景技术
目前,市场上现有多种电池,有一次电池和二次充电电池,有铅酸、镍氢、镍镉、锂电池(钴酸锂、锰酸锂、磷酸铁锂)应用在电动工具、电动自行车、电动摩托车、电动汽车、储能上的电池,由于小容量、功率低、效率低,需采用多块电池并联及串联起来增加功率和容量来提高电子产品的使用时间,由于每个电池都存在一定的差异,多个电池的组合对电池性能产生较大影响,降低电池的使用寿命,并影响使用安全。
现有技术中,单纯的锰酸锂电池及镍钴锰酸锂动电池及其他锂离子电池在应用在电动车、储能电池时,电压低、比能量小、放电效率低、使用寿命短和安全性差、电池结构能不稳定。
发明内容
本发明提出一种锰酸锂和镍钴锰酸锂纳米电池,在于克服单纯的锰酸锂电池及镍钴锰酸锂动电池及其他锂离子电池应用于电动车、储能电池时电压低、比能量小、放电效率低、使用寿命短和安全性差、电池结构能不稳定。
为实现上述目的,本发明提出一种锰酸锂和镍钴锰酸锂纳米电池,包括正极、负极、多个隔膜、聚合物凝胶电解质、电池壳体,其特征在于,包括:正极由正极活性物质、粘结剂、导电剂和正极集流体组成,正极活性物质采用采用锰酸锂、镍钴锰酸锂材料;粘结剂采用聚偏氟乙烯;导电剂采用导电炭黑、导电石墨、鳞片石墨、纳米碳、纤维粉中的一种或多种;正极集流体采用铝箔;
负极由负极材料、导电剂、增稠剂、粘结剂和负极集流体组成;
负极材料采用人造石墨、天然石墨、中间相碳微球或硬碳材料中的一种或多种;导电剂采用导电碳黑、导电石墨中的一种或多种;增稠剂采用羧甲基纤维素钠;粘结剂采用丁苯橡胶;负极集流体采用铜箔;
其中,正极、负极以及正负极之间的隔膜组成电芯,电芯采用由依次排列的第一隔膜、负极、第二隔膜、正极相连的叠片式结构;所述的正极的组分以及重量百分比为:镍钴锰酸铝35%-45%;锰酸锂35%-45%;纳米碳、纤维粉3%-6%;导电炭黑2%-4%;;鳞片石墨1%-4%;聚偏氟乙烯4%-7%;余量为铝箔。
所述的正极的组分以及重量百分比为:镍钴锰酸铝40%;锰酸锂40%;纳米碳、纤维粉5%;导电炭黑3%;鳞片石墨3%;聚偏氟乙烯5%;余量为铝箔。
本发明具有如下有益效果:
区别于现有技术中采用单纯的锰酸锂电池及镍钴锰酸锂动电池及其他锂离子电池在应用在电动车、储能电池电压低、比能量小、放电效率低、使用寿命短和安全性差、电池结构能不稳定的问题,本技术方案正极材料采用锰酸锂和镍钴锰酸为主添加导电石墨、鳞片石墨、纳米碳、纤维粉的一种或多种物质,提高锰酸锂和镍钴锰酸动力电池比能量、功率、容量、放电效率、使用寿命、安全性和结构稳定性。
具体实施方式
本发明提出一种锰酸锂电池电解液,包括正极、负极、多个隔膜、聚合物凝胶电解质、电池壳体,其特征在于,包括:正极由正极活性物质、粘结剂、导电剂和正极集流体组成,正极活性物质采用采用锰酸锂、镍钴锰酸锂材料;粘结剂采用聚偏氟乙烯;导电剂采用导电炭黑、导电石墨、鳞片石墨、纳米碳、纤维粉中的一种或多种;正极集流体采用铝箔;
负极由负极材料、导电剂、增稠剂、粘结剂和负极集流体组成;
负极材料采用人造石墨、天然石墨、中间相碳微球或硬碳材料中的一种或多种;导电剂采用导电碳黑、导电石墨中的一种或多种;增稠剂采用羧甲基纤维素钠;粘结剂采用丁苯橡胶;负极集流体采用铜箔;
其中,正极、负极以及正负极之间的隔膜组成电芯,电芯采用由依次排列的第一隔膜、负极、第二隔膜、正极相连的叠片式结构;所述的正极的组分以及重量百分比为:镍钴锰酸铝35%-45%;锰酸锂35%-45%;纳米碳、纤维粉3%-6%;导电炭黑2%-4%;;鳞片石墨1%-4%;聚偏氟乙烯4%-7%;余量为铝箔。
所述的正极的组分以及重量百分比为:镍钴锰酸铝40%;锰酸锂40%;纳米碳、纤维粉5%;导电炭黑3%;鳞片石墨3%;聚偏氟乙烯5%;余量为铝箔。
区别于现有技术中采用单纯的锰酸锂电池及镍钴锰酸锂动电池及其他锂离子电池在应用在电动车、储能电池电压低、比能量小、放电效率低、使用寿命短和安全性差、电池结构能不稳定的问题,本技术方案正极材料采用锰酸锂和镍钴锰酸为主添加导电石墨、鳞片石墨、纳米碳、纤维粉的一种或多种物质,提高锰酸锂和镍钴锰酸动力电池比能量、功率、容量、放电效率、使用寿命、安全性和结构稳定性。
Claims (2)
1.一种锰酸锂和镍钴锰酸锂纳米电池,包括正极、负极、多个隔膜、聚合物凝胶电解质、电池壳体,其特征在于,包括:正极由正极活性物质、粘结剂、导电剂和正极集流体组成,正极活性物质采用采用锰酸锂、镍钴锰酸锂材料;粘结剂采用聚偏氟乙烯;导电剂采用导电炭黑、导电石墨、鳞片石墨、纳米碳、纤维粉中的一种或多种;正极集流体采用铝箔;
负极由负极材料、导电剂、增稠剂、粘结剂和负极集流体组成;
负极材料采用人造石墨、天然石墨、中间相碳微球或硬碳材料中的一种或多种;导电剂采用导电碳黑、导电石墨中的一种或多种;增稠剂采用羧甲基纤维素钠;粘结剂采用丁苯橡胶;负极集流体采用铜箔;
其中,正极、负极以及正负极之间的隔膜组成电芯,电芯采用由依次排列的第一隔膜、负极、第二隔膜、正极相连的叠片式结构;所述的正极的组分以及重量百分比为:镍钴锰酸铝35%-45%;锰酸锂35%-45%;纳米碳、纤维粉3%-6%;导电炭黑2%-4%;;鳞片石墨1%-4%;聚偏氟乙烯4%-7%;余量为铝箔。
2.根据权利要求1所述的锰酸锂和镍钴锰酸锂纳米电池,其特征在于:所述的正极的组分以及重量百分比为:镍钴锰酸铝40%;锰酸锂40%;纳米碳、纤维粉5%;导电炭黑3%;鳞片石墨3%;聚偏氟乙烯5%;余量为铝箔。
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US10804566B2 (en) | 2015-09-16 | 2020-10-13 | Umicore | Lithium battery containing cathode material and electrolyte additives for high voltage application |
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US10804566B2 (en) | 2015-09-16 | 2020-10-13 | Umicore | Lithium battery containing cathode material and electrolyte additives for high voltage application |
US11688883B2 (en) | 2015-09-16 | 2023-06-27 | Umicore | Lithium battery containing cathode material and electrolyte additives for high voltage application |
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