# I am the Watcher. I am your guide through this vast new twtiverse.
#
# Usage:
# https://watcher.sour.is/api/plain/users View list of users and latest twt date.
# https://watcher.sour.is/api/plain/twt View all twts.
# https://watcher.sour.is/api/plain/mentions?uri=:uri View all mentions for uri.
# https://watcher.sour.is/api/plain/conv/:hash View all twts for a conversation subject.
#
# Options:
# uri Filter to show a specific users twts.
# offset Start index for quey.
# limit Count of items to return (going back in time).
#
# twt range = 1 1
# self = https://watcher.sour.is/conv/jylcu2q
身处南北方交界处，四季分明，买电车究竟是买三元锂电池还是磷酸铁锂电池？**
之前在动力电池厂，我看过某电池大厂的测试参数，三元材料抗寒的能力强，零下二十度，还能有个70%的电量。而磷酸铁锂电池大概只有55%的电量。
在零度左右，他们做的实验中，出品的三元锂电池衰减约10%，磷酸铁锂电池衰减约20%。当然，这个衰减的具体程度，和工艺或具体用的材料BOM也有很大关系。
但三元锂材料是典型的耐寒不耐热，耐热稳定性差，电池热量如果散发不出去，温度上升到一百五十到两百摄氏度，三元材料就会发生热失控，大量释放氧气，混合电池里可燃的 [电解液](https://www.zhihu.com/search?q=%E7%94%B5%E8%A7%A3%E6%B6%B2&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22answer%22%2C%22sourceId%22%3 ... ⌘ Read more