第61章 电池技术革命(二)
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(ps1:这章有点实用科技(论三星n7爆炸原理),别晕。龙腾小说ltxsba.com)
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和手机的发展一样,手机电池也在经历着不同的发展阶段,以适应更长时间耗电、更轻的重量以及更安全的使用效应。
手机电池在经历了镍镉电池、镍金属氢电池,如今到了锂离子电池的时代。
当锂电池适用于手机后,它便很快占领了手机市场,时下主流的锂电池基本上分为钴酸锂离子电池、锰酸锂离子电池、磷酸铁锂离子电池、三元电池等。
其中每一类电池各有优劣。其中钴酸锂离子电池能量密度最大,所以目前智能手机电池全部采用钴酸锂离子电池。而三元电池(三元聚合物锂电池)在容量与安全性方面比较均衡的材料,循环性能好于正常钴酸锂,所以耗电量更高的特斯拉汽车就开始使用三元锂离子电池替代了钴酸锂离子电池。
无能你是使用怎样的锂电池,你需要考虑三个最基本的元素:容量、尺寸和安全。
容量和尺寸不必说了,按照马克思的话来说,两者就是矛盾的对立统一,容量大势必意味着尺寸相对较大,反之尺寸做小了也意味着容量相对较小。即便现在用了很多手段提高锂电池的使用率和能量密度,但这种手段的发展速度相比起手机对电池的耗量可谓是杯水车薪,这也是手机电池发展缓慢的根本原因。
安全呢?很不幸,杯具的三星成为电池安全反面教材的例子。
三星电池爆炸原理:无论什么锂电池都是由正极、负极、电解液以及防止短路的隔膜组成,电解液将正负极浸润,而锂离子则在电解液中在正负极之间运动,实现电池的工作。那层隔膜则是为避免正负极接触发生短路而将正负极分离的作用。锂离子聚合物电池相使用了固态或胶状物体作为电解质,在出现意外的情况下,固态或胶状物体会出现气化的现象,更为严重的会出现燃烧。
于是最求隔膜变薄以提高能量密度的三星电池就一路燃燃燃,爆爆爆。
16年n7爆炸,召回,很不幸17年n8继续爆炸,召回。如今的三星深受其害,已经不敢发布大容量电池手机。销售额和手机占有率也急剧下滑,市场份额从全球第一直接下滑到全球第三(17年全球手机出货量排名:no1、苹果,no2、华为,no3、三星,no100+、联想扔在手机堆里没排名)。
而沈淮捣鼓出来的宇力生物电池呢?完全是另辟蹊径,直接绕过了能量密度和隔膜的矛盾。
用直接一点的话来说,宇力生物电池并不是正在意义上的电池,而是一个生物能量源,原理如下:
第一步:伊诺进行光合作用,产生大量(重点)有机物。
第二步:伊诺杆菌和它的小伙伴们消耗有机物,并进行新陈代谢分泌出不知名的离子(暂名伊诺离子)。
第三步:伊诺离子形成电势差,电子流动形成电流,化学能变为电能,顺带生成水和二氧化碳(重复被伊诺吸收)。
第四步:宇力电池空间有限,老的伊诺杆菌和小伙伴死亡(被伊诺吸收),新的菌落继续诞生,如此重复。
所以从实验的数据来说,伊诺不死电力不休!
再打个简单的比方,家庭的插座就是厨房,手机锂电池(假定2000毫安时)就是饭盒(中等大小可以吃一顿),现在兄弟你要上路了出远门,是不是把厨房里的食物装进饭盒里(手机充电充满)?
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