基于QFD与可拓学的镍氢动力电池新产品开发方法的研究

发布时间：2018-06-18 05:49

本文选题：镍氢动力电池 + 质量机能展开　；参考：《广东工业大学》2016年硕士论文

【摘要】：镍氢电池由于具有无污染、能量密度高、无记忆效应、安全性好、价格便宜等特点,成为最具发展前景的二次电池产品之一,广泛应用于各类电子产品、电动工具和混合电动汽车等产品。不同产品对镍氢动力电池的要求是不一样的,为了满足用户的多样化和定制化需求,需要通过调整镍氢动力电池的结构、工艺和添加的元素成份,研制出相应的镍氢动力电池新产品。企业目前是根据经验和多次试制产品,来开发基本满足客户定制需求的镍氢动力电池产品,耗时费力。为了解决企业的这个生产实际问题,本文提出应用质量机能展开(QFD)方法和可拓学创新方法,研究镍氢动力电池新产品的设计方法,目的是快速开发出满足用户要求的镍氢动力电池新产品。本文的主要研究内容如下：首先,根据镍氢动力电池的产品需求,建立产品规划阶段的质量屋。综合应用亲和图法、层次分析法和模糊优先规划方法得到镍氢动力电池的需求重要度以及工程技术特征权重。参考工程技术特征权重分析镍氢动力电池产品的设计方案。然而,产品需求与工程技术特征之间存在冲突,如要求电池循环寿命高,则需要增加粘黏剂防止活性物质的脱落,但会增加内阻,内阻的增加必然会影响电池的使用寿命。为了解决产品需求与工程技术特征之间的冲突问题,用可拓学的矛盾问题处理方法来建立镍氢动力电池产品需求与工程技术特征之间的不相容问题可拓求解模型。采用可拓策略生成方法求解所建立的镍氢动力电池不相容问题可拓求解模型。目标基元为客户需求,条件基元为镍氢动力电池的工程技术特征,找出可拓求解模型中的核问题,对导电剂、极耳形状和切片毛刺等所有相关的工程技术特征进行可拓变换,计算变换后的相容度函数,使不相容问题转化为相容问题,得到满足客户需求的镍氢动力电池的设计方案。在上述方法的研究基础上,改进极耳形状和切片毛刺,利用石墨烯取代导电炭黑,与镍氢电池的负极材料进行复合,试制出一种石墨烯镍氢动力电池,通过电化学性能测试验证了石墨烯镍氢动力电池的优越性能。
[Abstract]:The Ni-MH battery has become one of the most promising secondary battery products because of its characteristics of no pollution, high energy density, no memory effect, good safety and low price. It is widely used in all kinds of electronic products. Electric tools and hybrid electric vehicles and other products. Different products have different requirements for Ni-MH batteries. In order to meet the diversified and customized needs of users, the structure, process and added elements of Ni-MH batteries need to be adjusted. A new product of Ni-MH power battery has been developed. At present, the company develops nickel hydrogen battery products to meet the customer's custom requirements based on experience and many trial production, which is time-consuming and laborious. In order to solve this practical problem of production, this paper puts forward the application of QFDs and the innovative extension method to study the design method of the new product of Ni-MH power battery. The aim is to develop a new nickel-hydrogen battery product to meet the needs of customers. The main contents of this paper are as follows: firstly, according to the product demand of Ni-MH power battery, the quality house of product planning stage is established. The importance of requirement and the weight of engineering characteristics of Ni-MH power battery are obtained by using affinity graph method, AHP method and fuzzy priority programming method. The design scheme of Ni-MH power battery is analyzed with reference to the weight of engineering features. However, there is a conflict between product demand and engineering characteristics. If the battery cycle life is required to be high, it is necessary to increase the adhesive to prevent the active substances from falling off, but it will increase the internal resistance, and the increase of the internal resistance will inevitably affect the battery life. In order to solve the conflict between product demand and engineering technical characteristics, the extension solution model of incompatibility problem between product demand and engineering technical characteristics is established by using the contradiction problem treatment method of extension theory. The extension strategy generation method is used to solve the incompatibility problem of Ni-MH battery. The target element is the customer's requirement, the condition element is the engineering technical characteristic of the Ni-MH power battery, the nuclear problem in the extension solution model is found, and all the related engineering technical features, such as conductive agent, polar ear shape and slice burr, are transformed. By calculating the compatibility function after transformation, the incompatible problem can be transformed into a compatibility problem, and the design scheme of Ni-MH power battery can be obtained to meet the needs of customers. On the basis of the above methods, the shape of the electrode ear and the burr of the slice were improved, and the graphene instead of the conductive carbon black was used to compound with the negative electrode material of the Ni-MH battery to produce a kind of graphene Ni-MH power battery. The superior performance of Ni-MH battery was verified by electrochemical performance test.
【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U469.7

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