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锂电池技术
2022-08-10 13:03:00 【bingquan3333】
三元锂电池
三元锂电池的三元素分别叫“镍”“钴”“锰”,配方分别有111,523,811,代表这三种元素在这个电池里所占含量百分比:
- 111就是各33.33%
- 523就是镍50%,钴20%,锰30%
- 811就是镍80%,钴10%,锰10%
镍含量越高续航越高,钴含量越高,电池循环次数越多,锰越高,电池越稳定,但是钴和锰都属于贵金属,成本较高,所以市面上大部分三元电池都用811这个配方,看起来续航又多,成本又低,但是镍属于活性元素,很不稳定,挤压,穿刺,泡水,高温,高镍材料在200℃度左右,就开始发生分解释放氧气,造成爆燃。看清楚,是爆燃,爆炸+燃烧!而且,镍一旦烧起来,目前没有任何一种灭火方法可以扑灭他,只能让他烧完自行熄灭!消防队来了也没用,最多就是拉安全警戒线。
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