| ▲ | enslavedrobot 4 hours ago |
| Solid state batteries come in several flavours. Most of them don't stop dendrites. The flavour you want is polymer, single ion conducting solid state with an ion transport activation energy below 10kJ/mol at room temperature and no phase transitions from -40C to 80C. That is the holy grail of SS batteries. |
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| ▲ | BiraIgnacio 21 minutes ago | parent | next [-] |
| > The flavour you want is polymer, single ion conducting solid state with an ion transport activation energy below 10kJ/mol at room temperature and no phase transitions from -40C to 80C. what makes it so? I don't know anything about this subject, I'm really curious now about what the perfect battery would be. |
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| ▲ | marcosdumay 4 minutes ago | parent [-] | | No idea why polymer single ion conducting would stop dendrites (I know people are looking for it, I don't know why). But 10kJ/mol of activation energy is another way of saying less than 100mV of internal loses, and avoiding phase transitions means that your battery won't stop working on that temperature range. |
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| ▲ | jarbus 40 minutes ago | parent | prev | next [-] |
| I’m still a novice on the material science behind it, but what is QuantumScape lacking here if anything, and why is it a dealbreaker? |
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| ▲ | rawgabbit 3 hours ago | parent | prev | next [-] |
| Are anyone building the battery you described? |
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| ▲ | lightedman 3 hours ago | parent | prev [-] |
| "no phase transitions from -40C to 80C." Well that's fine for terrestrial use but aerospace needs that range to be expanded a little in both directions, otherwise it won't be much of a holy grail if it won't cover the needs of one of the largest growing industries. |
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| ▲ | vitally3643 3 hours ago | parent | next [-] | | [flagged] | | |
| ▲ | dang an hour ago | parent | next [-] | | Please don't attack another user like this, no matter how wrong someone is or you feel they are. It only makes things worse. I believe I get the positive intention behind your post, btw - to defend conversation against shallow dismissals - and of course appreciate that. But if you'd please express it in a respectful way in the future, then you'll be contributing to good conversation rather than degrading it further. https://news.ycombinator.com/newsguidelines.html | |
| ▲ | bracketfocus 2 hours ago | parent | prev | next [-] | | To be fair, the poster said “holy grail” which implies perfection. | | | |
| ▲ | lightedman an hour ago | parent | prev [-] | | "you're wasting everyone's time by trying to appear smart." No, I actually work in aerospace and know EXACTLY what the fuck I'm speaking of. Do you build satellites? Looking at your history - no you do not. I do. In fact, I'm responsible FOR THE POWER SYSTEMS (that's battery and solar AND any RTG should we ever go that route.) Sit down. | | |
| ▲ | dang an hour ago | parent | next [-] | | Please don't respond to a bad comment by breaking the site guidelines yourself. That only makes things worse. If you know more than others do, that's great! But please contribute by sharing some of what you know, so the rest of us can learn, rather than putting others down. https://news.ycombinator.com/newsguidelines.html | |
| ▲ | gambiting an hour ago | parent | prev [-] | | How does someone with such short temper get to work in the aerospace industry? You know we are just a bunch of random strangers on the internet and telling someone to "sit down" just comes across as funny more than authoritative. And I don't think telling someone "I know exactly what the fuck I'm speaking of" has ever had the desired effect on the internet, it just screams insecure - if you're really an expert make it show through your words not by trying to intimidate people. |
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| ▲ | 24 minutes ago | parent | prev [-] | | [deleted] |
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