铝电池 vs 锂电池:你应该选择哪种电池?
一、铝电池 vs 锂电池:你应该选择哪种电池?
铝电池 vs 锂电池
随着能源技术的不断进步,电池作为一种重要的能源存储方式备受关注。在众多电池类型中,铝电池和锂电池是两种备受瞩目的类型。它们各自有着优势和劣势,选择哪种电池取决于具体的应用场景和需求。
铝电池
铝电池是一种相对较新的电池技术,在可持续能源领域备受关注。相较于传统的锂电池,铝电池有着更高的充电速度和更长的循环寿命。同时,铝是丰富且廉价的金属资源,使得铝电池在成本上具有优势。此外,铝电池在安全性和环保性上也有着显著的优势,可以有效减少对稀有金属的需求,有助于推动可持续能源发展。
锂电池
相比之下,锂电池是目前应用最为广泛的电池技术之一。由于其高能量密度和长循环寿命,锂电池在便携设备、电动车和储能系统中广泛使用。然而,锂电池也存在一些挑战,如充电速度相对较慢、成本较高以及对稀有金属资源的依赖程度较高。
选择哪种电池?
在实际选择电池时,需要考虑具体的应用场景。如果是对充电速度和循环寿命要求较高的应用,铝电池可能是更好的选择;如果是对能量密度和轻量化要求更高的场景,锂电池可能更适合。另外,随着铝电池技术的不断进步,其在未来可能会成为一种更具竞争力的电池类型。
综上所述,铝电池和锂电池各有优势,选择哪种取决于具体需求。在未来的发展中,随着技术的进步和成本的下降,铝电池可能会在更多领域展现出优势。
感谢您阅读本文,希望本文能够帮助您更好地了解铝电池和锂电池,并在实际应用中做出明智的选择。
二、动力锂电池VS容量锂电池,到底哪个比较好?
“动力电池”和“锂电池”不是两个平行的概念。目前动力电池基本上都是用的锂电池,也叫锂离子动力电池,根据材料又可以分为三元电池、磷酸铁锂电池、锰酸锂电池、钴酸锂电池等,因为锂电池能量密度高等特点,所以被广泛应用。
三、锂电池 VS 铅酸电池:谁更胜一筹?
锂电池 VS 铅酸电池:谁更胜一筹?
在如今的能源驱动世界中,锂电池和铅酸电池是两种主要的蓄电池类型。它们在电动车、太阳能储能、移动设备等领域发挥着重要的作用。那么,究竟锂电池和铅酸电池哪个更好呢?让我们进行一番深入的比较分析。
电池原理
首先,让我们来了解一下这两种电池的原理。铅酸电池是一种成熟的、广泛应用的蓄电池类型,它通过铅和氧化物的化学反应来释放电能。而锂电池则是一种轻量级的电池类型,其中锂离子通过正负极的往复移动来储存和释放电能。
能量密度
锂电池相较于铅酸电池在能量密度上具有显著优势。由于锂离子电池具有更高的能量密度,它们在相同体积和重量下能够存储更多的电能,因此在电动车等领域享有优势。
使用寿命
在使用寿命方面,铅酸电池通常比锂电池更加耐用。铅酸电池循环寿命较长,尤其在深度循环使用情况下表现更为稳定。而锂电池的循环寿命虽然逐渐改善,但仍然有待提高。
成本效益
此外,从成本效益角度来看,铅酸电池相对来说更经济实惠。在短期和中期的投资成本考量下,铅酸电池往往比锂电池更具吸引力。然而,随着技术发展和规模效应的提升,锂电池的成本正在逐步降低。
环保与安全
最后,环保和安全因素也需要被纳入考量。锂电池在这方面具有优势,因为它们不含重金属,且充放电过程中没有泄霎或渗漏问题。然而,铅酸电池的回收利用成本相对较低,且废旧电池处理相对简单。
总的来说,要判断锂电池和铅酸电池哪个更好,并没有一概而论的答案。在不同的应用场景和具体需求下,两者各有优劣。因此,在选择时需要权衡各自的特点,并结合实际需求做出明智的决策。
感谢您阅读本文,希望通过这篇文章能够帮助您更好地了解锂电池和铅酸电池,为您的实际应用选择提供一定的参考价值。
四、800mha聚合物锂电池vs1280mha锂电池?
聚合物锂离子电池所用的正负极材料与液态锂离子都是相同的,正极材料分为钴酸锂、锰酸锂、三元材料和磷酸铁锂材料,负极为石墨,电池工作原理也基本一致。
它们的主要区别在于电解质的不同,液态锂离子电池使用液体电解质,聚合物锂离子电池则以固体聚合物电解质来代替,这种聚合物可以是“干态”的,也可以是“胶态”的,目前大部分采用聚合物凝胶电解质。
锂聚合物电池和锂离子电池哪个好
锂聚合物电池好。
锂聚合物电池是锂离子电池升级换代产品。相对于现在流行的锂离子电池而言,它具有容量大、体积小(薄)、安全(不会爆炸)等优点。但是,由于整个产业链的换代需要一定时间,它的造价(成本)目前还比较高,仅在高端数码产品中有使用(超薄笔记本电脑等)。
锂聚合物电池优点主要有以下几个方面
1、锂聚合物电池单体电池的工作电压高达3、6v~3、8v远高于镍氢和镍镉电池的1、2V电压
2、锂聚合物电池容量密度大,其容量密度是镍氢电池或镍镉电池的1、5~2、5倍,或者更高。
3、锂聚合物电池自放电小,在放置很长时间后其容量损失也很小。
4、锂聚合物电池寿命长,正常使用其循环寿命可达到500次以上。
5、锂聚合物电池没有记忆效应,在充电前不必将剩余电量放空,使用方便。
6、安全性能好
聚合物锂电池在结构上采用铝塑软包装,有别于液态电芯的金属外壳,一旦发生安全隐患,液态电芯容易爆炸,而聚合物电芯最多只会气鼓
7、厚度小,能做得更薄
锂聚合物电池超薄,电池能够组装进信用卡中。普通液态锂电采用先定制外壳,后塞正负极材料的方法,厚度做到3、6mm以下存在技术瓶颈,聚合物电芯则不存在这一问题,厚度可做到1mm以下,符合时下手机需求方向。
8、重量轻
锂聚合物电池采用聚合物电解质的电池无需金属壳来作为保护外包装。聚合物电池重量较同等容量规格的钢壳锂电轻40%,较铝壳电池轻20%。
9、容量高
聚合物锂电池较同等尺寸规格的钢壳电池容量高10~15%,较铝壳电池高5~10%,成为彩屏手机及彩信手机的首选,现在市面上新出的彩屏和彩信手机也大多采用聚合物电芯
10、内阻小
聚合物锂电池电芯的内阻较一般液态电芯小,目前国产聚合物电芯的内阻甚至可以做到35mΩ以下,极大的减低了电池的自耗电,延长手机的待机时间,完全可以达到与国际接轨
五、奔驰vs宝马vs奥迪vs保时捷?
曾经有份统计的,品牌价值方面奔驰》保时捷》宝马》奥迪
六、llm选择:BU vs GWU vs WUSTL ?
感觉又会被中介拿去收录并发放给其他申请人呢~
面试官:Maureen
面试时间:4.27北京时间晚上10点,波士顿时间9点
面试前,我搞了个word把可能问到的答案全码了上去,到时候哪里不会点哪里。
见面后感觉是一个45+的和蔼阿姨。声音很年轻,我女友在隔壁听着感觉像是under 30。
因为上一个面试者的缘故,Maureen迟到了大概10分钟,然后向我解释了面试的时候她会看旁边的notes(貌似是另一个meeting,没太听懂)所以眼神不会一直看着我,希望我别介意。
很温柔,很客气,也是一个很爱笑的面试官,开场氛围挺轻松的。
然后就进入喜闻乐见的她问我答环节:
1. (i've read your ps, know your background.....)然后抛出 why llm 这个问题
然后我就开始吟唱 I want to share my story with u ......
I spend 5 years to finish my undergraduate learning, this because my first major is tournism management and the concentration is exhibition management. But when I realize the the poor patent protection situation Chinese companies faced, I decide to change my major to Law even though I have to repeat another freshman year. What’s the lucky thing is I pass the exam and change my major successfully, but the unfortunate thing is the Sun Yat-sen Law school didn’t provide students a chance to formalize their concentration. So I’ve been looking for an opportunity to study my concentration (IP) systematically. And this idea becomes stronger when I begin my full-time job, as an In-House counsel. Because in the two internship experiences, no matter the Legal Aid nor the paralegal, the main work is non-litigation practice. However, when I take this full-time job, to be a In-house Council, I have met 3 litigations in 9 month. We lose one. Reach a settlement in another one. And the last one has not yet been in session because the epidemic. So I realize that it’s necessary to apply for LLM. My superior, the In-house Lawyer told me that LLM allows me to increase my knowledge and be specialized in a legal field. More important thing is, I believe that studying in an outstanding law school just like BLS, learning from would-class faculty is a journey which could benefit me for a life time.
So, that's my story!
感觉将转专业那段吸引了她的注意力,回答结束后,她也分享了她19 years old 的law school 经历
她有一个master 和 一个JD 剩下的我好像没听懂还是搞忘了...... 总之她也吟唱了有一会儿
2.第二个问题:proudest thing you made in undergraduate
我一开始不确定是想问学术经历还是proudest thing,所以和Maureen double check 了一下。
于是,我就把word划到当年创业的经历,开始朗读:
I start my own business with some schoolmate whose major is computer science. We establish a website where people could share their account and receive payment from others.
Let me give you some examples. There is a new TV play you like on netfilx or apple tv but it requires a VIP account. So you could borrow a Vip account on our website for just a weekend but just pay very little money to the account holder. And our website would take 10 percent of this transaction amount as our commission.
听完,她的反应:wow,that was interesting,然后就过了,感觉好像没太听懂这个租号网站的模式。
可能和法律没啥关系吧。
3.第三个问题 how about share something about your internship
我就和她确认了一下,能不能分享我现在这个全职工作的一些经历,她说可以
于是我就把word滑到工作经历那里,然后开始吟唱:
In november last year, I help my company reach a settlement with the plaintiff which help both side maintain the relationship with others and avoid 30,000 dollar lost. In this case, I realized that to be the winner in a court is not the only way nor the best way to defend the interest of a company. Mostly, the business style would prefer another way to resolve disputes which is more flexible. Back to that case, this plaintiff and another defendant, both of them are our client, as you know, we are a OEM company, we produced goods for other company and stick their brand to these goods. The plaintiff give us a order to produce a kind of shampoo with their bottle and our inner material. This shampoo are sold very well in the market. So another defendant come to find my company and give the order to produce the same product but with different brand. However, the plaintiff has the appearance patent of the bottle, so we become the accomplice of the copycat. Actually, we don’t have advantages if we go to the court but we hold the formula of the inner material. You know, you cannot sell only the bottle to market, you need the inner material. So I suggest my boss to pay a visit to the plaintiff with another defendant actually they know each other in business. They Appologize to the plaintiff, my company release a part of the formula to the plaintiff, another defendant promise never sell or produce the same product and pay some guarantee deposit to the plaintiff. No need contract just some shaking-hands between the boss and job is done. The two companies are still giving order to us. I found it’s good to think like a lawyer but sometimes it’s better to think like a businessman.
我感觉我这段又臭又长,把Maureen给听困了,于是答完交流了一下 Law firm 和 In-house counsel 我哪个更喜欢
我说我喜欢In-house,因为在律所的实习没啥诉讼业务,我的工作都是无聊的paper work就像是给lawyer当秘书兼司机
这种personal 的opinion 比较吸引Maureen
4.第四个问题:虽迟但到的 Why Bu
毫无挑战的问题,照例朗读:
Boston is a charming and Energetic city with long history. There are beautiful snowing winter and world-class attraction waiting for me. And the location of BLS puts me only minutes away from work opportunities of the Law Firm, Big company and government office. I believe I could enjoy both dynamic city life and a peaceful residential environment there.
Besides, I really appreciate the sologan on your website “Learning outside the classroom”. This is not common in Chinese University. LOTC indicates the school totally has confident in their student. And be willing to offer a rigorous and free atmosphere for student to live and study. You have 35+ student organization including a softball organization even though I never play this sport in China before and 6 journals run by the student. I always believe that first you should be free to do anything and then you could achieve anything. It happens now in BLS.
答完,照例Maureen也开始吟唱 介绍BU
一流的师资,百年的名校,充满活力的社区,友善安全的环境,蓝星最强的灯塔国(原话好像是:the strongest and most advanced nation)欢迎你的到来......你一定会拥有受益终身的一年......
我:that's fantastic. (你们也可以商业胡吹一波,但我到这儿已经30min了,就没多聊)
接下来,轮到我逆转攻势!开始提问:
我原本准备了7个问题,但是时间问题,我就只问了5个
1. what's the rate of the vaccine in Boston University.(没问)
2. Do you offer student the campus housing or any kind of housing
这个直接把Maureen干笑了,她答:“you won't like living in dormitory, there are plenty of undergraduate American students, they drunk, hold parties ......”建议我去外面住,然后我问有没有建议居住的区域,她说email告知我
3. Could u provide more info about how LLM student transfer to JD (没问)
4. I know u graduate from Law school, what’s your first job after graduating from school and is there any suggestion for other graduator to be a jobseeker.
她说:第一份工作是政府的地区发展办公室(职能类似于我国地区版本的发改委),然后说了说她的建议,我没怎么听懂,都是些套话,听的我头发昏......不如WUSTL的大胡子面试官Juan给的详细。尬笑结束。
5. what preparation you advise me to do before school starts / reading some books / what channel I should subscribe ?
和WUSTL 的Juan一样的回答:English English And English
可能她也感知到了我这托福只有96的捉急水平......
6. can I take the bar exam if I apply for the IP program?
No,and the progra you applied is American Law ......
7. when can I GET the final decision ?
她说,good question,快的话,今天下午就会出,最迟不会迟于周五(4.29)
8. Do you have any orientation before Sep. and what i can learn from this.(没问)
但是她前面在我答完WHY BU后有说
完事儿后,我们small talk 了一下,她说:
the final depends on the whole admission,but you got my vote.
我直接视频里给她来了个比心,逗得老阿姨开怀大笑。
这波攻略还拿不下,简直没道理了。
聊钱俗气,就没谈奖学金的事儿,懂得都懂,已经意思到位了,就看诚意如何了,哈哈!
七、镍氢电池VS锂电池,新能源汽车更适合哪个?
当然是锂电池。 比较如下:锂电池——————镍氢电池
1、额定电压:3.7V——————1.2V
2、电量:大——————————小
3、比能量:大————————小
4、记忆效应:无————————小
5、寿命:长——————————长
6、充电时间:短————————较长
7、单位电量价格:低——————高
8、单位电量体积:小——————大
9、单位电量重量:轻——————重
10、生产及使用中的污染:小——大
八、绵阳VS宜宾VS德阳VS乐山VS泸州这五个?
当然是绵阳了,绵阳是中国唯一的科技城,也是全国卫生城,还是中国宜居城市之一,四川第二大城市,不管从经济,环境,交通,还是治安都是很好的!
九、乌贼vs墨鱼vs鱿鱼vs八爪鱼?
这是都是海生物,说是鱼它们根本不是鱼,乌贼与墨鱼它们是一种鱼,属于半深海生物,鱿鱼也属于半深海生物,和八爪鱼不是一类品种,八爪是浅海生物,在浅海生存,会盗洞。
十、伽椰子vs楚人美vs贞子vs贞子vs富江?
贞子是病毒,伽椰子是咒怨,进房必死。
而我国粤剧大师楚人美小姐,才是真正的鬼魂,使用魔法物理双重攻击,能够充分发挥主观能动性杀人。论战斗力贞子弱于楚人美弱于伽椰子,但是日本人太变态,能把贞子拍的这么恐怖,可以说是女鬼代言人,伽椰子知名度略输的主要原因就是
伽椰子真他妈的太恐怖,哪个变态想出来的断下巴,蜘蛛爬,还有音效攻击“啊啊啊啊”,花式表演杀人,还有超级后援介雄。这些特点单拿出来都比贞子恐怖,尼玛结合到一起,真的太变态了