"match"? Match what? Anyone can build a charging station that supplies 350kW or 3,500kW or 35,000kW. There still aren't any cars in existence that can accept that level of power, so there is nothing to match.
Yes, battery charging limits and practical use cases. Around 100 to 120kW charging gives a rate that works pretty well for traveling speed, so going higher than that several years ago wasn't much of a priority. Power that high needs liquid cooled cables, which was not a maintenance issue they wanted to get into. And charging rates depend on the size of the batteries, so until batteries got cheaper, so they could start offering bigger ones, the higher power didn't make that much sense. And charge cable thickness is related to the amps. It's already pretty rough doing 300A through a cable you can reasonably manage. You don't want a cable as thick as your leg if they just kept pushing the amps up, so that needs to wait for higher voltage battery packs. Most EVs have been using 350V or 400V, but some (Porsche) are going toward 800V, so they can do double the charging rate at the same amps and cable thickness. Tesla will probably go that way too at some point.
ChargePoint announced their new Express Plus high power charging system nearly two years ago at CES. They're not ready yet either.
This is all true, except maybe the building block is 31.25kW. ChargePoint also developed and showed a massive new high power connector for future electric passenger drones and heavy vehicles. However, even the smallest of the family, the Express 250, at 62.5kW is not ready yet. This unit uses the same charger building blocks as the bigger cube based charging systems. None of them have passed UL yet. From what I hear, the regulatory approvals are the things keeping these from being deployed. That probably also caused them to be passed over by Electrify America as a supplier while BTC and ABB and even one other (was it Signet?) were chosen to supply EA. Branding and appearance may have also been a sticking point keeping EA and CP from coming together to make a deal.
Each Tesla pack has its own characteristics due to the specific cells used, the structure of the cooling, and the total number of cells. Some packs have more headroom to charge faster and some have hardly any, relative to current Superchargers. The 100D packs and the Model 3 LR packs have the most headroom and could probably take a peak of 200kW if all the wiring in the car can take the increased current. Teardown has shown that the Model 3 has fatter cables between the charge port and the battery pack than the S and X. EPA docs also say that the Model 3 LR can take up to 525 amps. 380V * 525A = 199,500W.
They aren't going to charge the current batteries faster. They would use a different battery design.
Sneaky, hiding their Gigafactories like that.
