發(fā)布時間：2018-10-30 13:33

【摘要】：近期的霧霾天氣已成為人們生活中不可逃避的環(huán)境問題。如何加強環(huán)境保護，減小污染，成為目前尤為重要的問題。相對一次能源，二次能源具有污染小，使用便捷等優(yōu)點，在現(xiàn)代社會中具有重要作用。鉛酸蓄電池相較于鋰電、燃料等其他化學電源具有使用安全、性能穩(wěn)定等優(yōu)點。鉛酸蓄電池可用于各種機動車中，可起到節(jié)能環(huán)保，減少尾氣排放等作用。隨著科技的不斷發(fā)展，人們對鉛酸蓄電池性能的要求也隨之提高。尤其在初容量及低溫容量等方面提出更高的要求。這些問題主要與鉛酸蓄電池負極的性能有密切關(guān)系。 為此本文進行兩方面的探索：一、將碳納米管代替鉛酸蓄電池負極中的乙炔黑；二、將對氮蒽藍代替負極中的木素；并分別進行物理表征和電化學測試，根據(jù)實驗結(jié)論來衡量這兩種負極添加劑對鉛酸蓄電池各項性能的具體影響。 本文通過手工和膏涂板的方式制成負極生極板，送工廠流水線，根據(jù)工廠生產(chǎn)工藝，裝配成6DZM-12的成品電池。實驗通過SEM和XRD觀察負極添加劑及負極生極板的具體形貌；并通過對電池的容量、低溫性能等電化學測試，來考察添加劑對電池各項性能的具體影響。 碳納米管添加劑的實驗結(jié)果表明，不同型號碳納米管均可提高電池的性能，其中TNM2型碳納米管在三種碳納米管(TNM2、TNM5、TNM8)中性能表現(xiàn)最為好，，建議最佳添加量為3‰。此時電池的初容量、-15℃低溫容量、大電流3C放電時間分別可提高6.2%、15.3%、13%；電池的容量保持率最高可達92.4%。同時也將TNM5、TNM8型碳納米管進行同樣測試，結(jié)果顯示，TNM5型碳納米管的最佳添加量為2‰，TNM8型碳納米管的最佳添加量為4‰。 對氮蒽藍添加劑的實驗結(jié)果表明，不同含量的對氮蒽藍能在不同程度上提高電池性能，當添加量為3‰時，電池的-15℃低溫容量可提高29.2%，且電池的初容量、大電流性能均比常規(guī)電池有顯著提高，因而建議3‰的添加量作為參考值。 總的來說，這兩種負極添加劑均可對電池的整體性能產(chǎn)生利好影響，且建議添加量在常規(guī)用量范圍內(nèi)，因此可以作為工業(yè)生產(chǎn)的參考值。
[Abstract]:Recent haze weather has become an unavoidable environmental problem in people's lives. How to strengthen environmental protection and reduce pollution has become a particularly important issue. Compared with primary energy, secondary energy plays an important role in modern society because of its advantages of less pollution and convenient use. Lead-acid battery compared with lithium, fuel and other chemical power has the advantages of safe use, stable performance and so on. Lead-acid battery can be used in a variety of motor vehicles, can play the role of energy conservation and environmental protection, emission reduction and so on. With the development of science and technology, the performance of lead-acid batteries has been improved. Especially in the initial capacity and low temperature capacity and other aspects put forward higher requirements. These problems are mainly related to the negative electrode performance of lead-acid batteries. In this paper, two aspects are explored: first, replacing acetylene black in the negative electrode of lead-acid battery with carbon nanotubes; second, replacing lignin in negative electrode with para-nitroanthracene blue; The physical characterization and electrochemical test were carried out respectively. According to the experimental results, the effects of these two negative additives on the performance of lead-acid batteries were measured. In this paper, the negative electrode plate is made by hand and plaster plate, which is sent to the assembly line of the factory. According to the production technology of the factory, the finished battery of 6DZM-12 is assembled. SEM and XRD were used to observe the specific morphology of anode additives and anode plates, and the specific effects of additives on battery performance were investigated by electrochemical measurements of battery capacity and low temperature performance. The experimental results of carbon nanotube additives show that different types of carbon nanotubes can improve the performance of the battery. Among the three carbon nanotubes (TNM2,TNM5,TNM8), TNM2 type carbon nanotubes have the best performance, and the optimal addition amount is 3 鈥

本文編號：2300141