最近 news hear say china scientist make big breakthrough 
in sodium ion battery area, two poles structure technology already solve key problem, may increase new energy car run mileage up to 10,000km 
。 
research team from multiple institutes like chinese academy of sciences, ningbo institute and Wuhan university cooperate and develop self-adaptive medium interface for solid state battery. 
this interface medium can keep strong contact force, solve problem of electrolyte and sodium ion contact in solid state battery.
in new energy car area, it mean one 100kg battery may run up to 10,000km.
because traditional solid state battery have many small hole and crack, affect battery life and exist safety risk. 
research team use iodine ions, by electric field's action, move iodine ions to surface of electrode and form iodine rich interface
. this interface can active absorb sodium ion, solve all small hole and crack, keep strong contact force 
.after hundreds cycles of charge and discharge, prototype battery still run stable in standard test condition, over traditional battery level.
another team from metal institute chinese academy of sciences develop extendable battery
, able to bear 20,000 times bending, solve problem of traditional battery contact resistance and ion transport efficiency . finally, a team from clear university develop new type fluorinated polyether electrolyte
, improve sodium ion battery high pressure stability and interface stability 
.these result will help promote development of new energy car industry and provide important scientific explanation for higher mileage, safety and efficiency's car
他们采用了自适应介质接口，通过电场的作用，可以使碘离子移动到电极表面形成碘富集化的界面，能弥合微小孔和裂隙、保持强烈接触力。 
这意味着100公斤的电池可能可以实现一万公里的续驶里程了！ 
同时，清华大学团队开发了一种可延伸的电池，可以耐受20,000倍弯曲，解决传统电池中接触阻抗和离子运输效率的问题。 
而自适应介质接口，碘离子引入后，形成了强烈的接触力，弥合了所有这些问题。 
例如，可延伸电池，耐受弯曲，解决了传统电池中的接触阻抗和离子运输效率的问题。 
在安全方面，也进行了很好的测试，充满电池在强热试验中成功通过针刺测试和120°C 导电箱的安全测试，没有发生爆炸或燃烧。这应该给新能源汽车行业带来了很多希望 
中国科学院物理学研究所、 Ningbo 工业材料技术与工程研究所和武汉大学等机构合作做的研究很厉害，
中国科学家们做的工作真不错，