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+Title: Demystifying Battery Technology
+Date: 2024-05-11
+Authors: Matt Gibson
+
+![MyImage]({Illustration of Daniell cell}../images/daniell_cell.png)
+
+
+# Introduction:
+
+* Brief overview of the importance of batteries in modern life.
+* applications of batteries: smartphones to electric vehicles
+
+# Understanding Battery Basics:
+* definitions
+    - anode
+    - cathode
+    - electrolyte
+        - ions
+        - separator
+    - cell vs battery
+    - open circuit voltage
+    - internal resistance
+    - capacity
+    - c and c rate (capacity)
+    - load
+    - charging rate
+    - discharge rate 
+    - state of charge
+    - chemistry 
+    - primary (non-rechargeable) vs secondary (rechargeable)
+    - cylinder vs prismatic vs pouch
+    - battery refresh
+    - charge time
+    - chaging cycle or cycle life
+    - use time
+    - shelf life / service life
+    - energy density
+    - power density
+
+
+* Introduction to galvanic cells.
+* Types of batteries: an overview.
+* Energy conversion in batteries.
+* Components of batteries.
+* Principle of operation.
+
+# Factors Affecting Battery Choice and Performance:
+
+* Performance parameters to consider.
+* Understanding battery voltage.
+* Exploring secondary battery systems.
+* Identifying battery-limiting factors.
+* Effects of current and discharge modes.
+* Impact of temperature on battery performance.
+* Managing self-discharge.
+* Considering calendar and cycle life.
+* Understanding internal resistance and safety measures.
+* Tips for battery selection.
+
+# Deep Dive into Battery Types:
+
+* Lead-Acid Batteries:
+* Nickel-Cadmium Batteries:
+* Nickel-Metal Hydride Batteries:
+* Lithium Batteries:
+    - Overview and evolution.
+    - Early, current and future lithium batteries: 
+     Li Metal; Li-Air and Li-S.;  Li-Ion.
+    - Components and fabrication techniques.
+    - Charging and discharging processes.
+    - Extending cycle life and minimizing self-discharge.
+        - Addressing operational challenges.
+    * alternatives (supercapacitors, fuel cells, flow batteries, wireless power, solid state, etc.)
+
+# Battery Management Systems
+
+- charging, charge controllers and charger techniques
+- safety and protection
+- cell-balancing
+- battery fuel gauging
+
+# References
+* https://batteryuniversity.com/
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diff --git a/content/Blog/energetic_exposition_of_markets.md b/content/Blog/energetic_exposition_of_markets.md
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@@ -2,6 +2,7 @@ Title: An Energetic Exposition: notes about electricity markets
 Date: 2024-05-08
 Authors: Matt Gibson
 
+![Melbourne Terminal substation]({attach}../images/daniell_cell.png)
 
 Electricity markets are can be quite complex. They have many features which are atypical of other commodity markets, and are not frequently discussed in econ 101. For instance, my microeconomics textbooks has nearly three chapters on the environment, pollution and natural resources (it's a bit lefty) but has a single reference to energy and none to electricity. For the record, there point is that in 2009 renewables were subsidised to the tune of 4 billion USD, while fossil fuels were subsidised to the tune of 550 billion USD (yikes). 
 
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